Lasers. Medical search. Frequent questions

Diode lasers are electrically driven lasers generally made from semiconducting materials. (nature.com)
Diode lasers represent a viable alternative to light sources used in many biomedical applications. (nature.com)
As opposed to current gas or diode lasers, which emit at a single wavelength, nanocrystal lasers could emit light ranging from violet to green. (technologyreview.com)

Lasers that emit ultrashort pulses of light are used for numerous applications including micromachining, microscopy, laser eye surgery, spectroscopy and controlling chemical reactions. (eurekalert.org)
Lasers emit very specific colors of light. (universetoday.com)
Continuous wave lasers emit a steady-state, uninterrupted beam. (medscape.com)

The ISKRA-5 laser is a spatially filtered (image relayed) 12 beam photolytically pumped iodine gas laser capable of producing laser pulse energies of around 30 kJ and peak pulse powers of around 100 terawatts (pulsewidth about 0.25 ns) at its fundamental emission wavelength of 1.315 micrometers. (wikipedia.org)
By actively shaping the optical pump within the random laser, single-mode operation at any selected wavelength is achieved with spectral selectivity down to 0.06 nm and more than 10 dB side-lobe rejection. (nature.com)
Thanks to the sensitivity and wide wavelength range of the Herschel observatory, we detected a very rare type of emission called hydrogen recombination line laser emission, which provided a way to reveal the nebula's structure and physical conditions. (usra.edu)
Featuring wavelength of 976 nm and max output of more than 60 W, SPL BF98-40-5 Laser Bar achieves brilliance of 3 W per millimeter and one mrad divergence angle at optical output of 44 W. Unit is 5 mm wide and consists of 5 emitters, each 100 -µm wide with cavity length of 4 mm. (thomasnet.com)
SDL developed a high-brightness diode-laser pum ce that emits at a previously unavailable wavelength, and Polaroid researchers produced a high-reliability, double-clad optical fiber. (laserfocusworld.com)
The color of a laser beam is determined by the wavelength of light that composes it. (space.com)
The engineers happened to have purple lasers readily available, and the solar cells operate efficiently at that wavelength, according to the statement. (space.com)
The design of the waveguide is critical to determining the performance and specific wavelength of the hybrid silicon laser. (intel.com)
Carbon dioxide laser emits light at a wavelength of 10,600 nm that is absorbed strongly by water (the primary chromophore for carbon dioxide light that is abundant in skin). (medscape.com)

The main use for both lasers being the investigation into inertial confinement fusion, high energy density physics and nuclear weapons research. (wikipedia.org)
Investigation of the spectral narrowing physics of self-injection-locked on-chip lasers to Hz-level linewidth using a composite-cavity structure. (nature.com)
The laser testing was completed the week of Nov. 27, led by engineers at the Johns Hopkins Applied Physics Lab in Maryland, which is constructing the spacecraft and will operate it during its mission. (space.com)
image: Georgia Tech physics professor Rick Trebino and graduate student Pam Bowlan pose with SEA TADPOLE, a device that allows non-laser scientists to easily measure complicated ultrashort pulses. (eurekalert.org)
Researchers have always measured the pulse immediately as it exited the laser, so they didn't realize the extent to which the pulse became distorted by the time it reached the focus after traveling through the optics and lenses in the system," said Rick Trebino, a professor in the Georgia Institute of Technology's School of Physics and Georgia Research Alliance Eminent Scholar in Ultrafast Optical Physics. (eurekalert.org)
We will discuss the nessecary parts of a laser (resonators and amplifiers), the physics behind the function (interaction between photons and atoms) and the specific properties which defines a laser (beam optics). (lu.se)
The aim of the course is the give the students a deeper knowledge about modern Laser Physics. (lu.se)
It goes from the basics of lasers using quantum mechanics and electromagnetic field theory to the research front within some aspects of the physics of lasers. (lu.se)
However, researchers in Atomic Physics and Packaging Logistics have developed a new laser instrument. (lu.se)
The instruments are handled by specialist in the divisions of Chemical Physics and Atomic Physics, both included in the Lund Laser Center (LLC). (lu.se)
However, researchers in Atomic Physics and Packaging Logistics have developed a new laser instrument which could solve the problem. (lu.se)
The idea of using lasers to measure food packaging came about by chance, when Sune Svanberg, Professor of Atomic Physics at Lund University and the father of this laser technology, met Annika Olsson, then a Reader in Packaging Logistics, on a management course at Lund University a few years ago. (lu.se)

ISKRA-6 would be a 128 beam laser capable of irradiating targets with ~300 kJ of laser light at the 351 nm third harmonic with pulsewidths of around 1 to 3 ns. (wikipedia.org)
The laser printing process works by using a laser beam to project an image onto an electrically charged, rotating drum. (xerox.com)
Laser therapy is a medical treatment that uses a strong beam of light to cut, burn, or destroy tissue. (medlineplus.gov)
The laser light beam does not pose health risks to the person or medical team. (medlineplus.gov)
Because the laser beam is so small and precise, it allows health care providers to safely treat tissue without injuring the surrounding area. (medlineplus.gov)
ThyssenKrupp Steel Europe, the Fraunhofer Institute for Materials and Beam Technology IWS, and LIMO have initiated development work on a new laser technology that the partners will use to improve the properties of steel strip surfaces. (thomasnet.com)
The high-quality beam results from the laser cavity being a single-mode optical fiber, and this monolithic design reduces the number of optical components and sensitivity to misalignment. (laserfocusworld.com)
Ablative lasers use the power of light in a targeted beam to remove and resurface the skin, either superficially or through to the deeper layers. (newbeauty.com)
When a doctor is certain the eye is numb, they will fit a lens on the cornea to help focus the laser beam on the retina. (medicalnewstoday.com)
After a doctor is sure they have sealed all the leaking blood vessels, they will turn off the laser beam and cover the eye. (medicalnewstoday.com)
No matter what kind of laser pen you buy, they all operate on the same principle: a laser diode , related to an LED (light-emitting diode), powered by AA batteries emits a narrow, coherent beam of light when switched on. (universetoday.com)
When voltage is applied, light generated in the Indium Phosphide enters the silicon waveguide to create a continuous laser beam that can be used to drive other silicon photonic devices. (intel.com)
However, adding conditioning optics - such as beam expanding and reducing telescopes - to the laser has improved drilling capabilities. (machinedesign.com)
Sensors and software for laser-beam focus control have also improved. (machinedesign.com)
The sensors, typically capacitive or optical, measure and help automatically control the distance between the laser-processing beam focal point and workpiece. (machinedesign.com)
In the past, automatic focus controls often used a small motor to directly position the cutting/drilling nozzle, thus moving the focusing lens parallel to the laser-cutting beam. (machinedesign.com)
Stored data, in turn, helps control the laser-beam position during part processing. (machinedesign.com)
The coherence of a laser beam can more specifically be thought of as the number of photons that can be emitted in this manner, which is a property crucial in determining the performance of a laser in precision tasks like quantum computing. (cosmosmagazine.com)
They showed theoretically that the coherence of the beam cannot be greater than the square of the number of photons stored in the laser," explains co-author Howard Wiseman, from Griffith University's Centre for Quantum Dynamics. (cosmosmagazine.com)
But they made assumptions about how energy is added to the laser and how it is released to form the beam. (cosmosmagazine.com)
The partially reflective mirror at one end has an aperture through which the amplified light exits as a laser beam. (medscape.com)
Q switch is a mechanism used to deliver a pulsed beam, and this provides energy at much higher densities and longer duration, but also with greater frequency, thus optimizing the laser output. (medscape.com)
Scattering of laser energy may result in collateral, nonthermal damage to surrounding tissue, while the reflection of a laser beam can lead to effects outside the body of the patient, as in airway fires and injury to operating room personnel. (medscape.com)
High resolution is achieved by scanning the sample with a finely focussed laser beam, and exclusion of out-of-focus fluorescence by a confocal aperture. (lu.se)
By shining a laser beam into the packaging and studying the light that comes back, it is possible to see if the composition of the gas is correct. (lu.se)
The laser beam measures the amount of oxygen. (lu.se)

Masers (short for Microwave Amplification by Stimulated Emission of Radiation) are much like lasers in that they are concentrated beams of energy. (pcworld.com)
The term LASER stands for light amplification by stimulated emission of radiation. (medlineplus.gov)

The device was described in a presentation at the Conference on Lasers and Electro-Optics on May 8. (eurekalert.org)
Light propagation in anisotropic materials, · Acusto-optical effects and modulators, · Electro-optical effects and modulators, · Non-linear interaction between light and matter, · Ultrafast optics, propagation of short laser pulses in dispersive non-linear media, · Basic laser safety. (lu.se)
The teaching consists of lectures, two laboratory sessions (non-linear optics, ultrafast optics (titanium-sapphire laser)) including preparatory laser safety, group work and a project in optical design by means of a modern ray tracing program. (lu.se)

When it comes to lasers, what works for one skin tone may not work for another since different laser wavelengths pick up different pigments-some of the darker skin types may not see optimal results with certain types of lasers, which is why it's crucial that only a board-certified and experienced dermatologist, plastic or facial plastic surgeon administer your treatment. (newbeauty.com)
The course "Lasers" presents the physical principles of lasers and gives an orientation on the different types of lasers and laser techniques. (lu.se)

A new type of nanometer-size semiconductor crystal that can amplify light marks an important step toward cheap, tunable lasers. (technologyreview.com)
While quantum dots have found use in medical imaging and are close to being used in photovoltaic cells and LEDs, researchers have been trying for a decade to use the semiconductor nanocrystals to make lasers. (technologyreview.com)
A chaotic semiconductor laser signal generates a very large amount of information. (trnmag.com)
State-of-the-art semiconductor lasers can generate chaotic signals equivalent to one gigabyte of random bits per second, and potentially at least 10 times more than this," said Davis. (trnmag.com)

As revealed by the new data, the Ant Nebula also beams intense laser emission from its core. (usra.edu)
These tests use lasers because their tight beams allow the illumination of a single string of solar cells at a time, according to the statement. (space.com)
These three beams come from 50 mW lasers. (universetoday.com)

Selective excitation of the carrier population in one set of two distinct valleys can further lead to lasing in the confined valley, paving the way for easily-tunable circularly polarized lasers. (sciencedaily.com)
This method paves the way towards versatile tunable and controlled random lasers as well as the taming of other laser sources. (nature.com)

In 2005, Intel researchers were the first to demonstrate that silicon could be used to amplify light using an external light source to produce a continuous wave laser-on-a-chip based on the Raman effect. (intel.com)
The workhorses of industrial laser processing continue to be the flashlamp pumpedpulsed Nd:YAG, continuous-wave Nd:YAG, and CO2 lasers. (machinedesign.com)
Other characteristics that affect laser performance include the power output and the mode of emission (eg, continuous wave, pulsed, or Q-switched). (medscape.com)
A pulsed laser delivers higher peak power, measured in joules (watts per second) than does a continuous wave laser, the energy of which is measured in watts. (medscape.com)
however, this technique was not adopted widely because of the significant thermal damage that accompanied the use of continuous wave lasers, which meant a high likelihood of potential scarring. (medscape.com)
Approximately 90% of carbon dioxide laser energy is absorbed in the initial 20-30 µm of skin, yet traditional continuous wave lasers leave behind a thick zone of thermal damage measuring 0.2-1 mm in thickness. (medscape.com)
The second type uses an optomechanical flash scanner connected to a conventional continuous wave carbon dioxide laser. (medscape.com)

Coincidentally, the purple hue of the lasers recalls Pantone's 2018 Color of the Year , a regal hue dubbed Ultra Violet by the Pantone Color Institute . (space.com)
What he uncovered in his new book, Jewish Space Lasers: The Rothschilds and 200 Years of Conspiracy Theories , out Sept. 19, is a densely woven web of rumor and subterfuge, infectious racism and stubborn ignorance, that extends from medieval Europe to Rep. Marjorie Taylor Greene 's ludicrous claim that the 2018 California wildfires were ignited by a space laser controlled in part by the Rothschilds. (yahoo.com)
Solid Outcomes for Femtosecond Laser Cataract Surgery - Medscape - Apr 11, 2018. (medscape.com)

Eagle Lasers 20kW at Fabtech 2021. (webnewswire.com)
Eagle Lasers, leader of fiber laser cutting systems, will be participating in Fabtech 21, at McCormick Place in Chicago from September 13 to 16, 2021. (webnewswire.com)

Lasers are defined as highly directional, monochromatic, coherent light. (cosmosmagazine.com)

For many people, laser eye surgery can correct their vision so they no longer need glasses or contact lenses. (medlineplus.gov)
Laser eye surgery reshapes the cornea, the clear front part of the eye. (medlineplus.gov)
There are different types of laser eye surgery. (medlineplus.gov)
Only your eye doctor can tell if you are a good candidate for laser eye surgery. (medlineplus.gov)
Poor treatment has been an issue in this field because no uniform guidelines existed to inform practice, according to a press release from the American Society for Laser Medicine and Surgery (ASLMS). (medscape.com)
Laser treatment has some of the same risks as open surgery, including pain, bleeding, and scarring. (medlineplus.gov)
But recovery time from laser surgery is usually faster than recovery from open surgery. (medlineplus.gov)
Lasers are also often used during skin surgery . (medlineplus.gov)
Cutaneous laser surgery. (medlineplus.gov)
Macular degeneration laser surgery: Does it work? (medicalnewstoday.com)
People receive laser surgery for wet AMD, as it can seal the leaky blood vessels that cause the condition. (medicalnewstoday.com)
In most cases of wet AMD, doctors try anti-vascular endothelial growth factor (anti-VEGF) therapy before laser surgery. (medicalnewstoday.com)
However, sometimes the eyes do not respond well to anti-VEGF drugs, in which case a person may need laser surgery. (medicalnewstoday.com)
Laser surgery cannot reverse vision loss, but it can preserve current vision or prevent further loss. (medicalnewstoday.com)
This article will look at the reasons for getting laser eye surgery for AMD , how effective it is, and what the procedure involves. (medicalnewstoday.com)
How does laser surgery work for wet AMD? (medicalnewstoday.com)
There are several types of laser surgery for wet AMD. (medicalnewstoday.com)
Laser photocoagulation is the oldest form of laser surgery for AMD. (medicalnewstoday.com)
Is laser surgery an effective wet AMD treatment? (medicalnewstoday.com)
According to the American Macular Degeneration Foundation, laser surgery can only treat 10-15% of the lesions caused by wet AMD. (medicalnewstoday.com)
Generally, a person can expect some further vision loss from photocoagulation surgery, as the laser can destroy some surrounding healthy tissue. (medicalnewstoday.com)
Laser surgery is not a cure for AMD, but it can reduce symptoms. (medicalnewstoday.com)
Who can have laser surgery? (medicalnewstoday.com)
Many people with wet AMD can have laser surgery, but certain features of the condition may mean some have a better outcome than others. (medicalnewstoday.com)
People with dry AMD typically do not need laser surgery. (medicalnewstoday.com)
This is because dry AMD causes thinning of the retina, which laser surgery cannot help. (medicalnewstoday.com)
Before someone undergoes laser surgery, a doctor will dilate the pupils using eye drops and examine the eye. (medicalnewstoday.com)
What happens next will depend on which type of laser surgery a person receives. (medicalnewstoday.com)
Oral lesions treated with laser surgery include aphthous ulcers, lymphangiomas, hemangiomas, and verrucous carcinomas. (medscape.com)
The adoption of femtosecond laser-assisted cataract surgery (FLACS) has remained relatively flat over the past few years. (medscape.com)
When considering a femtosecond laser for cataract surgery and devices like Zepto and miLOOP, I believe that there are certain cases where the pros outweigh the cons, even when accounting for the additional cost incurred. (medscape.com)

The user-friendliness of today's laser manufacturing systems helps solve for the continued scarcity of highly skilled production workers. (sme.org)
Since then, laser printing has evolved to become today's business standard for convenience and quality. (xerox.com)
Today's multiaxis lasers offer double the performance compared with machines of a decade ago. (machinedesign.com)
Today's laser systems have evolved from a collection of individual components into truly integrated machine tools, based on advanced process knowledge and improved capabilities. (machinedesign.com)
For example, today's systems typically optimize motion parameters based on the components being produced, laser processing speeds, and the ability of workpiece sensors to detect and the controls to adaptively correct for part-to-part variations. (machinedesign.com)
While these assumptions make sense and still apply to most of today's lasers, they aren't necessarily required when it comes to quantum mechanics. (cosmosmagazine.com)

A lot of chemists and biologists use ultrafast lasers, so it was important that our device be easy to use because non-laser scientists don't want to spend all day measuring their laser pulses," noted Bowlan. (eurekalert.org)

Treatment with ablative lasers requires anesthesia and pain management. (newbeauty.com)

Laser Diode simplifies fiber-coupled systems. (thomasnet.com)

And since nanocrystals are made in the form of bright solutions, the lasers could be built right into optical telecommunication fibers or deposited on lab-on-a-chip devices and silicon-based medical and chemical sensors. (technologyreview.com)
A lot of work was also done on lasers that can blind enemy sensors. (strategypage.com)
This sort of thing has been around for years, but new, cheaper and more sensitive sensors are also more vulnerable to lasers. (strategypage.com)
Meanwhile, lasers continue to proliferate as measuring tools (laser range finders) and sensors (ladar). (strategypage.com)
The recent addition of laser-based sensors, termed Optical Focus Control (OFC), addresses limitations of capacitance sensors to 'side sense,' or detect part surfaces adjacent to the one being processed. (machinedesign.com)

A new practice guideline is setting a standard for doctors who use lasers to treat cutaneous vascular anomalies . (medscape.com)
The guideline , published on the ASLMS website along with supporting videos, was jointly developed by ASLMS, VBF, and an international group of clinicians, marking the first consensus guideline on laser treatments for cutaneous vascular anomalies. (medscape.com)
Cite this: New Guidelines for Laser Treatment of Cutaneous Vascular Anomalies - Medscape - Jul 26, 2023. (medscape.com)
Until the advent of cutaneous laser resurfacing in the late 1980s, physicians long had used mechanical abrasion and various chemical peeling agents to restore a youthful look to the aged face. (medscape.com)

In conventional lasers, the optical cavity determines the main characteristics of the laser emission: its geometry fixes the emission wavelengths and the lasing modes, as well as the direction of the laser emission. (nature.com)
For decades, the conventional wisdom was that you needed a high powered laser (as in instantly burning through the metal skin of a missile). (strategypage.com)
The FiberLaser is being shipped in increasing numbers to the graphics arts market (through Polaroid) for thermal platesetting and imagesetting applications and is making inroads in displacing conventional laser systems in thermal marking and other material-processing applications. (laserfocusworld.com)
Final considerations: the use of surgical diode laser is a safe and effective method, and presents numerous advantages compared to the conventional technique for surgical excisions of soft tissue lesions in the oral cavity. (bvsalud.org)

Develops and manufactures solid-state and gas lasers in the UV-VIS spectrum with special focus on OEM applications in biophotonics, Raman spectroscopy, and holography. (photonics.com)
We have access to numerous laser spectroscopy setups for experiments in broad range of timescales including femto- and attosecond. (lu.se)

Turning out critical components such as turbine-engine blades, nozzle guide vanes, shrouds, combustors, and even air frames increasingly depends on advances in multiaxis lasers that speed manufacturing, improve quality, and reduce part costs. (machinedesign.com)
Advances in lasers and fiberoptics have made them ideally suited to travel through routes in the human body where no hand or scalpel has gone before. (medscape.com)
TUESDAY, Oct. 3, 2023 (HealthDay News) -- Minimally invasive transperineal laser ablation (TPLA) of the prostate appears effective for benign prostatic hyperplasia (BPH), according to a review published online Sept. 21 in Therapeutic Advances in Urology . (msdmanuals.com)
Development of laser diagnostic techniques and extensive hardware development has led to rapid advances in a various other research fields the last decades. (lu.se)

Ablative lasers produce dramatic results in resurfacing skin to diminish wrinkles, acne scars and other surface irregularities through removal of upper layers of the skin. (newbeauty.com)
Fractionated CO 2 laser resurfacing is a widely used cosmetic procedure that minimizes the appearance of rhytides (skin wrinkles) and acne scars, and compared with older laser procedures, fractionated CO 2 resurfacing is associated with less downtime and a lower rate of infectious and noninfectious complications ( 7 - 9 ). (cdc.gov)

The ESI Newsletter offers valuable insights into developments in laser processes and materials handling, plus all the latest industry news and events. (esi.com)

And for those not feeling the classic 'rolled up newspaper' approach, a scientist has come up with the world's first automated mosquito laser. (techdigest.tv)
More recently he worked on the mosquito laser, built from parts bought on eBay. (livescience.com)

It is important to realize that just because someone is board certified does not mean they are skilled in treating all conditions or using all lasers," Paul Friedman, MD , a dermatologist in Houston, and former president of ASLMS, said in the ASLMS statement. (medscape.com)
Lasers are an ever growing industry," says Hackensack, NJ, dermatologist David Goldberg, MD. "They have evolved so much since they were first introduced about 25 years ago-each generation is better and more effective than the last. (newbeauty.com)
Basically, the pigment in the skin can attract the laser energy and if used incorrectly, can cause discoloration," says Washington, DC, dermatologist Elizabeth Tanzi, MD. There's always the risk of pigment changes even if everything is done correctly. (newbeauty.com)

The ISKRA-4 and ISKRA-5 lasers are lasers which were built by the Soviet Union at RFNC-VNIIEF in Arzamas-16 (Арзама́с-16) with the approximately 2 kJ output ISKRA-4 laser being completed in 1979 and the 30 kJ output ISKRA-5 laser which was completed in 1989. (wikipedia.org)

While lasers in everyday life today might mean special visual effects in music concerts, in space, focused emission is detected at different wavelengths under specific conditions. (usra.edu)

In this Letter, we achieve experimental control of the random laser spectral emission by optimization of the optical pump profile. (nature.com)

In addition to its photonic and optoelectronic applications, this 2D excitonic laser technology also has potential for valleytronic applications, in which digital information is encoded in the spin and momentum of an electron moving through a crystal lattice as a wave with energy peaks and valleys. (sciencedaily.com)
After seeing all the advancements in laser technology over the last few decades, who knows what might be possible with masers now that scientists have removed its barrier to research. (pcworld.com)
Our newest ConnectKey ® technology-enabled laser printers offer robust support for mobile printing, cloud connectivity, security and cost control. (xerox.com)
Xerox ® Production Printers and Digital Presses take laser printer technology to a new level, combining vibrant print quality with high-speed productivity. (xerox.com)
Xerox ® VersaLink ® laser printers and multifunction laser printers are Xerox ® ConnectKey ® Technology -enabled. (xerox.com)
Xerox ® AltaLink ® multifunction laser printers are ConnectKey technology -enabled, high-volume devices with scalability, power and security for large workgroups. (xerox.com)
If you're seeking a modern and innovative approach to creating stunning jewelry pieces, laser technology is the answer! (slideshare.net)
One stand-out feature is the 10W laser output that, alongside the compressed spot technology, enables the TS2 to cut through 8mm ply in one pass. (techradar.com)
LCRD will demonstrate the technology over several years before laser communications becomes operational for future NASA missions. (nasa.gov)
The FiberLaser from SDL Inc. (San Jose, CA)--introduced in February 1997--represents the commercialization of an entirely new diode-laser-based technology. (laserfocusworld.com)
Earlier today, a report on a BMW forum made a reference to the laser lights technology for the BMW i8 coming this Fall in the US. (bmwblog.com)
The most striking change in multiaxis laser technology over the last decade has been the degree of integration of subsystems. (machinedesign.com)
But we do prove that it would be possible to construct our truly quantum-limited laser using superconducting technology," he says. (cosmosmagazine.com)
Nevertheless, lasers progressed rapidly and became an omnipresent part of modern technology and procedural medicine. (medscape.com)

As with any cosmetic procedure, laser patients come from mixed ethnicities, and this is important to inform your doctor of. (newbeauty.com)
PDT is a newer procedure and is more precise than laser photocoagulation because it only targets unhealthy blood vessels without as much damage to surrounding tissue. (medicalnewstoday.com)
Densely distributed erythematous papules and pustules developed within the treated area within 2 weeks of the laser procedure. (cdc.gov)
Although aware of heat-induced collagen shrinkage during laser resurfacing procedure, whether this immediate shrinkage observed clinically persists or results in long-term collagen tightening is not known. (medscape.com)

The HeNe laser has an emission that is determined by neon atoms by virtue of a resonant transfer of excitation of helium. (photonics.com)
Some photons are emitted spontaneously from the excited atoms or molecules that cause light to travel in all directions within the laser cavity. (medscape.com)
When atoms interact with strong laser fields, high-order harmonics are generated. (lu.se)

ISKRA-6 is a laser under investigation for future construction by VNIIEF which would be in the near-NIF and LMJ class of extremely high energy, high power frequency tripled Nd:glass lasers used to access the ignition regime of imploding DT fusion fuel capsules for nuclear weapons research. (wikipedia.org)
The quasi PT-symmetry design enables the creation of electrically pumped large-area edge-emitting lasers with high power single-mode emissions by selectively inducing loss on high-order modes. (nature.com)
For our excitonic laser, we dropped the metal coating and designed a microdisk resonator that supports a dielectric whispering gallery mode rather than a plasmonic mode, and gives us a high Q factor with low power consumption," says co-lead author Ye. (sciencedaily.com)
The power of the laser is such that it will also engrave hard surfaces such as stainless steel. (techradar.com)
A persistent problem with combat lasers is generating sufficient electrical power to drive them. (strategypage.com)
But the U.S. Army and Air Force have discovered that low power lasers can be pretty lethal battlefield weapons. (strategypage.com)
That was thought to be potentially very useful, but the U.S. Department of Defense conducted lots of tests in the last five years, only to discover that these cheaper, easier to use (because of the lower power requirements) lasers were also not yet ready for prime time. (strategypage.com)
Breakthroughs in battery power and laser design can eventually solve a lot of the existing problems. (strategypage.com)
Green lasers often use AAA batteries and draw a good amount of power especially on chilly nights. (universetoday.com)
We have shown that the true limit imposed by quantum mechanics is that the coherence cannot be greater than the fourth power of the number of photons stored in the laser," says Macquarie's Dominic Berry. (cosmosmagazine.com)
The high power densities of a pulsed laser produce nonthermal interactions with tissue, which is a useful adjunct to the primary purpose for which the laser is used (eg, in lithotripsy procedures). (medscape.com)
First is a high-power pulsed carbon dioxide laser that can deliver approximately 500 µJ of energy in each submillisecond pulse, resulting in energy fluence measuring 5-7 J/cm 2 . (medscape.com)

Often used incorrectly, the term "laser" is actually an acronym for Light Amplification by the Stimulated Emission of Radiation. (newbeauty.com)

To achieve the highest possible intensity of the laser, the pulse must be as small as possible in space and as short as possible in time. (eurekalert.org)
Using the theory of selective photothermolysis, carbon dioxide lasers with a pulse duration of less than 1 millisecond are capable of selectively vaporizing tissue with only a very thin zone of residual thermal necrosis measuring approximately 100 µm. (medscape.com)
Overall, delivering a 1-millisecond carbon dioxide laser pulse with an energy fluence of approximately 5 J/cm 2 leads to tissue vaporization measuring 20-30 µm and residual thermal injury measuring 40-120 µm. (medscape.com)

The HeNe laser is the most commonly used gas laser. (photonics.com)
helium-neon (HeNe) laser The most commonly used gas laser. (photonics.com)
In contrast, Indium Phosphide-based lasers are commonly used today in telecommunications equipment. (intel.com)
The thermal effects of laser, which occur at 60-65ºC, are the most commonly used. (medscape.com)

The tendency of tissue to absorb laser energy determines the final effect of the laser. (medscape.com)

laser printing ensures that every speck of toner is applied to the page in exactly the right position, offering a precise, crisp finish. (xerox.com)
The Device Name for a particular laser will connect you to another FDA page that will give you a summary of this submission. (fda.gov)

The laser crams all of the energy of a continuous laser into a few femtoseconds, which creates really intense laser pulses," said Pam Bowlan, a graduate student supported by the Technological Innovation: Generating Economic Results (TI:GER) program. (eurekalert.org)
Because the laser pulses enter SEA TADPOLE through optical fibers, which only collect a very small portion of the light, the device naturally measures pulses with high spatial resolution and can measure them at a focus spot size smaller than a micron," explained Bowlan. (eurekalert.org)
Theory of selective photothermolysis states that selective heating of the target chromophore can be achieved when using laser pulses shorter than the thermal relaxation time (TRT) of the chromophore (time required for chromophore to lose 50% of its heat to surrounding tissue). (medscape.com)
Some of these systems have a computerized pattern generator (CPG) that rapidly and precisely can place individual laser pulses in several different patterns. (medscape.com)
This scanner efficiently distributes laser energy into a train of pulses with a dwell time shorter than skin TRT, thus mimicking truly pulsed carbon dioxide lasers. (medscape.com)

The problem is that they've always been impractical-that is, until the team of researchers came up with a device that could let masers over take lasers in the coolness race. (pcworld.com)
Well, one color, in particular: Researchers used purple lasers at NASA's Goddard Space Flight Center to examine the probe. (space.com)
Aimed at the spacecraft's solar array, the purple lasers helped researchers verify that the 44 strings of solar cells on each panel are still electrically connected, following vibration and acoustic testing conducted earlier this fall, according to a statement from NASA . (space.com)
Researchers from Advanced Telecommunications Research Institute International (ATR) in Japan have found a way for two people in different locations to work out a cryptographic key using the signal from the rapidly and randomly fluctuating light signal of a chaotic laser. (trnmag.com)
SANTA CLARA, Calif., Sept. 18, 2006 Researchers from Intel Corporation and the University of California, Santa Barbara (UCSB) have built the world s first electrically powered Hybrid Silicon Laser using standard silicon manufacturing processes. (intel.com)
Australian quantum researchers have shown it's possible to vastly improve the coherence of lasers, overcoming a bound that has been accepted as a fundamental limit for 60 years. (cosmosmagazine.com)

As laser manufacturing systems for sheet and tube grow more sophisticated-powerful, automated and scalable-navigating the wealth of choices might feel daunting. (sme.org)
While different fabricators use lasers differently, the ultimate goals are generally the same: eliminate secondary operations with systems customized to one's business. (sme.org)
From employing multiple lasers to updatable cutting process libraries and moving and storing high volumes of material, systems are more flexible than ever. (sme.org)
While CO2 systems are still available for particularly thick materials, fiber lasers continue to gain ground thanks to being easier to operate and maintain. (sme.org)
The US Navy is about to go a bit Star Wars, after signing an agreement with Boeing and military suppliers BAE Systems to start work on a seafaring version of the Mk 38 Mod 2 Tactical Laser System. (techdigest.tv)
While scaling back most efforts to develop laser weapons into systems that can actually be used in combat, the military is continuing to do a lot of basic engineering work. (strategypage.com)
At North America's leading photonics industry fair - the SPIE Photonics West - from February 10 to 12, 2015 in San Francisco, Jenoptik will be presenting product highlights of its Optical Systems and Lasers Material Processing divisions. (thomasnet.com)
Rochester, NY- - LaserMax, market leading producer of premium laser sighting systems, today announced their 2015 sales programs and show specials. (thomasnet.com)
Guaranteed to dazzle, LaserMax introduces new sighting systems for 2015 including new OEM solutions featuring the smallest, most robust lasers sights for concealed carry. (thomasnet.com)
In addition to aerospace components, multiaxis lasers have become important systems for making everything from automotive prototypes to medical devices. (machinedesign.com)
For instance, integrated multiaxis laser systems move the nozzle via the main system axes, thus letting the user specify any desired direction of motion. (machinedesign.com)
Generally speaking, the use of smoke evacuators are more effective than room suction systems to control the generated smoke from nonendoscopic laser/electric surgical procedures. (cdc.gov)
Advent of short-pulsed high energy and scanned carbon dioxide lasers and other laser systems that limit skin heating has revolutionized laser skin resurfacing. (medscape.com)
These laser systems appear to be equally effective in skin resurfacing when they achieve similar depths of skin injury. (medscape.com)

Heterogeneously integrated III-V/SiN lasers operating with quantum-dot and quantum-well active regions are analyzed. (nature.com)
Colloidal quantum dot devices demonstrating electrically pumped amplified spontaneous emission are described, showing strong, broadband optical gain and bright edge emission, opening the path to solution-processable laser diodes. (nature.com)
This opens the door for a laser based on nanocrystal quantum dots," says Alexander Efros, a theoretical physicist at the Naval Research Laboratory, in Washington, DC, and a pioneer in nanocrystal quantum dots. (technologyreview.com)
Artist's conception of a superconducting device which could realise a laser operating at the ultimate quantum limit. (cosmosmagazine.com)
A quantum limit of laser coherence was determined in a seminal 1958 paper by US physicists Arthur Schawlow, a Nobel Prize winner, and Charles Townes. (cosmosmagazine.com)
The team also found a quantum mechanical model for a laser that could theoretically achieve this upper bound for coherence. (cosmosmagazine.com)

Unlike lasers, masers can pierce though cloud cover, living tissue, and other solid materials undisturbed. (pcworld.com)
Unfortunately, laser photocoagulation also burns healthy tissue along with treating the leaky vessels, so it is used sparingly in very select cases. (medicalnewstoday.com)
During surgical procedures using a laser or electrosurgical unit, the thermal destruction of tissue creates a smoke byproduct. (cdc.gov)
Laser light interacts with tissue to cause thermal, chemical, or mechanical effects. (medscape.com)
The chemical uses of laser are seen in photodynamic therapy in which a photosensitizer drug concentrates in neoplastic tissue and is then activated with laser light to release free oxygen radicals that destroy the abnormal tissue. (medscape.com)
All the above effects of laser are dependent on the type of laser used, as well as on the type of tissue, since a particular tissue may transmit, absorb, scatter or reflect the laser light. (medscape.com)
Confocal laser scanning microscopy is mainly used in biomedical sciences for high-resolution analysis of cell and tissue structures labeled with fluorescent markers. (lu.se)
they ablate less tissue per pass and leave behind a narrower zone of thermal necrosis than original carbon dioxide resurfacing lasers. (medscape.com)

Another innovation introduced at the 2016 CES is a BMW K 1600 GTL bike with laser lights. (bmwblog.com)

Objective: to demonstrate through a clinical case report the excision of an inflammatory fibrous hyperplasia (IFH) with the use of surgical diode laser. (bvsalud.org)
The aim of this projectis to (1) develop state-of-the-art laser diagnostics for investigating plasma phenomena and (2) demonstrate and apply these methods in relevant conditions for plasma-discharge applications. (lu.se)

Specifically, Gary Starkweather invented the laser printer in 1969 at the Xerox research lab in Webster, New York. (xerox.com)
Soon after, he transferred to Xerox Palo Alto Research Center (PARC) and developed a prototype for the Xerox 9700: our company's first laser printer, which came to market in 1978. (xerox.com)
A new video shwos the US Navy's research department has been busy working on a laser weapon. (techdigest.tv)
He talks about his research surrounding laser cooling and explains his decision to move to Stanford after Bell. (aip.org)
There has been a lot of research in recent years into using chaotic laser-generated waveforms for encryption, but most of the work has focused on hiding data within chaotic waveforms. (trnmag.com)
More information on the Hybrid Silicon Laser can be found at http://www.intel.com/research/platform/sp/hybridlaser.htm . (intel.com)
The results may also open up new lines of research into more energy-efficient lasers. (cosmosmagazine.com)

VersaLink laser printers and multifunction laser printers are ideal for small workgroups in any office environment, from SMB to enterprise. (xerox.com)
The best laser multifunction printer will depend on your individual office needs. (xerox.com)

The Two Trees TS2 is one of the market's most powerful self-assembly laser engravers. (techradar.com)

For that, a researcher needs a femtosecond laser, says Klimov. (technologyreview.com)
With increasing data to suggest the benefit of FLACS, we are now seeing technologies that provide the benefits of a femtosecond laser but without the same capital investment. (medscape.com)
The femtosecond laser offers the ability to place corneal astigmatic incisions for which we can charge. (medscape.com)
The remaining benefits of the femtosecond laser (ie, imaging, femto-fragmentation, and capsulotomy) are included as part of the insurance coverage for the cataract extraction. (medscape.com)

Prototype laser weapons can zap drones from the sky. (ieee.org)
Lasers quickly produce automotive prototype parts and eliminate hand work. (machinedesign.com)

Laser printers are best known for their fast speed, high reliability and impressive print quality. (xerox.com)
Laser printers are a good option for those printing a few hundred pages per month, as well as for high-volume environments printing thousands. (xerox.com)
Sheet-fed production laser printers are ideal for graphic communications and commercial print providers' high-volume printing applications, including publishing, transactional-promotional printing, direct mail, print-on-demand, short runs, packaging, photo publishing and marketing collateral. (xerox.com)
The Phaser ® brand has been around for decades, and is now synonymous with high-quality laser printing. (xerox.com)
Xerox ® Phaser ® monochrome and color laser printers range from entry-level models with compact footprints for small spaces and small work teams, up to high-volume models with fast print speeds for midsized work teams. (xerox.com)
Laser communications will enable better data rates, making possible new capabilities such as 4K ultra-high-definition streaming from beyond Earth orbit. (nasa.gov)
Red, green and violet lasers with a high enough output to trace a line in the night sky are all available these days for reasonable prices. (universetoday.com)
Learn how you can take advantage of high-speed UV Laser micromachining to stay ahead of your customers' evolving processing needs. (esi.com)
A laser based on silicon could drive wider use of photonics in computers because the cost can be greatly reduced by using high-volume silicon manufacturing techniques. (intel.com)
Renesas offers highly integrated, high-speed laser diode drivers (LDD). (renesas.com)

Lasers come in numerous intensities and can treat just about any skin-related problem. (newbeauty.com)

In a laser, the energy source is usually electric or flashlamp driven. (medscape.com)

North America's metal forming, fabricating, and welding event.Eagle Lasers will show all the advantages of the iNspire 1530 fiber laser cutting machine with a 20 kW laser source, the unmatched 6G acceleration, and the 9 secs pallet changer - unique in the industry. (webnewswire.com)
NASA's Laser Communications Relay Demonstration (LCRD) will showcase the advantages of communicating information using infrared lasers! (nasa.gov)

ARLINGTON, Va. -- DRS Technologies Inc., a Finmeccanica Company, announced today that it successfully performed the first airborne demonstration of its GS205-XRZ laser designating gimbal. (thomasnet.com)

Green, violet and red lasers. (universetoday.com)

Laser System provides non-ablative skin resurfacing. (thomasnet.com)
In addition, this type of laser resurfacing requires that you stay out of the sun for a year and in some cases for a lifetime. (newbeauty.com)
recently reported the first case of NTM infection caused by Mycobacterium chelonae after treatment with a fractionated CO 2 laser for facial resurfacing ( 11 ). (cdc.gov)
A) Neck and chest of a 53-year-old woman (case-patient 1) 14 days after fractionated CO 2 laser resurfacing. (cdc.gov)
A 53-year-old woman had multiple erythematous papules and pustules densely distributed over her face, neck, and chest ( Figure 1 , panel A) 2 weeks after receiving fractionated CO 2 laser resurfacing (Solta Medical Inc., Hayward, CA, USA). (cdc.gov)
Before laser resurfacing, the patient began a prophylactic 7-day course of valacyclovir because of a history of recurrent herpes labialis. (cdc.gov)
Two different types of carbon dioxide lasers are promoted for the purpose of skin resurfacing. (medscape.com)

The thermal effects of laser cutting, coagulation, and vaporization are made use of in the majority of laser applications at settings of 25 to 100 watts. (medscape.com)

What is more, iNspire fiber laser machine with its own patented best-in-class eVa Laser Cutting Head will be operating live through a large variety of materials and thicknesses with the brand's premium software technologies like CatLine, FastLine, MixLine, CutEye, and Drop&Cut. (webnewswire.com)

This was well before the discovery and first successful operation of lasers in laboratories in 1960, an occasion that is now celebrated annually on May 16 as the International Day of Light. (usra.edu)

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