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*  Blog on Optical Tweezers: October 2012
Utilizing these expressions and the Arbitrary Beam Theory, the optical forces exerted on a Mie dielectric particle in the Airy ... The size and refractive index of LBCs makes them well-suited for manipulation with an optical trap. We developed methods that ... Particle motion through a holographic trap array has been investigated theoretically and experimentally, and it is shown that a ... Optical Fiber Technology (1) Optical Materials (1) Optical Materials Express (4) Optical Memory and Neural Networks (1) Optical ...
  http://opticaltweezers.blogspot.com/2012/10/
*  Patent US7133203 - Apparatus for applying optical gradient forces - Google Patents
... a time variable diffractive optical element to allow dynamic control of optical trap arrays and consequent control of particle ... A method and apparatus for control of optical trap arrays and formation of particle arrays. The method and apparatus provides a ... arrays and also the ability to manipulate singular objects using a plurality of optical traps. ... wherein the optical traps 132 are formed by a holographic form of diffractive optical element 112. The movable knife edge 120 ...
  http://www.google.ca/patents/US7133203
*  Blog on Optical Tweezers: November 2011
... "optical tweezers," varying between levitation and single beam gradient force trapping, depending on particle and beam ... measurement of a nanometer-sized sphere held in optical tweezers in water using an in-line digital holographic microscope with ... The model incorporates Mie scattering and a trapping beam focused through media of stratified refractive index. We show that ... Based on the conservation of linear momentum on scattering from arbitrary objects, we demonstrate the generation of ...
  http://opticaltweezers.blogspot.com/2011_11_01_archive.html
*  Blog on Optical Tweezers: April 2012
... of double emulsions in a cross-type optical particle separation system was studied for different combinations of the refractive ... Optical Manipulation of Liquid Crystal Droplets Through Holographic Polarized Tweezers: Magnus Effect ... The theory of optical forces on spherical scatterers is here generalized to arbitrary incident fields. The interaction between ... Optical Fiber Technology (1) Optical Materials (1) Optical Materials Express (3) Optical Memory and Neural Networks (1) Optical ...
  http://opticaltweezers.blogspot.com/2012_04_01_archive.html
*  Optical tweezers - Wikipedia
Advanced forms of holographic optical traps with arbitrary spatial profiles, where smoothness of the intensity and the phase ... Most optical traps operate with a Gaussian beam (TEM00 mode) profile intensity. In this case, if the particle is displaced from ... 2D or 3D optical lattices. Without any induced electrical charge, the cells would sort based on their intrinsic refractive ... Optical tweezers have proven useful in other areas of biology as well. For instance, in 2003 the techniques of optical tweezers ...
  https://en.wikipedia.org/wiki/Optical_tweezers
*  Blog on Optical Tweezers: March 2009
The optical pressure force on a particle is specific to each particle's size, shape and refractive index. So far, these ... Holographic optical tweezers (HOT) are a versatile technology, with which complex arrays and movements of optical traps can be ... Current demands on optical nanolithography require the ability to rapidly and cost-effectively write arbitrary patterns over ... Optical Fiber Technology (1) Optical Materials (1) Optical Materials Express (4) Optical Memory and Neural Networks (1) Optical ...
  http://opticaltweezers.blogspot.com/2009/03/
*  16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics | (2008) | Publications | Spie
Surface observation and measurement by means of digital holographic microscope with arbitrary degree of coherence Author(s): ... We demonstrate optical manipulation with micrometer-sized dielectric particles. Instead of well-known optical tweezers we use ... The paper presents experiments with a refractive light sword optical element (LSOE). A refractive version of the LSOE was ... We demonstrate ability of LMA for stable optical trapping of particle in the range of hundreds of nanometers to tens of ...
  http://spie.org/Publications/Proceedings/Volume/7141?SSO=1
*  OSA | OE Vol. 23 Iss. 21
Measurement of particle motion in optical tweezers embedded in a Sagnac interferometer ... Dynamical measurement of refractive index distribution using digital holographic interferometry based on total internal ... Arbitrary-detuning asynchronous optical sampling with amplified laser systems. Laura Antonucci, Adeline Bonvalet, Xavier ... Optical side scattering radiometry for high resolution, wide dynamic range longitudinal assessment of optical fibers ...
  https://www.osapublishing.org/oe/issue.cfm?volume=23&issue=21
*  Seventh International Conference on Correlation Optics | (2006) | Publications | Spie
In particular we show applications ranging from micromanipulation using optical tweezers to X-ray differential interference ... The chains are embedded in a medium with refractive index n = 1 and 1.5. Incident polarized Gaussian beams propagate along ... Holographic matched filters were recorded using self-developing photopolymers PPC-488. For two test objects, we obtained ... Entrainment of thermo-e-r-s in arbitrary quantizing magnetic fields that were orthogonal to the temperature gradient, allowing ...
  http://spie.org/Publications/Proceedings/Volume/6254
*  Blog on Optical Tweezers: August 2011
We demonstrate the use of holographic optical tweezers for trapping and manipulating silicon nanomembranes. These macroscopic ... One beam provides the optical forces for driving the particle along appropriate paths, but at same time works as the object ... The average refractive index of the sphere-field intersection volume is used to explain the result in a qualitative way.. DOI ... Since the DDA lends itself to calculations on particles of arbitrary shape, the study is augmented by considering more general ...
  http://opticaltweezers.blogspot.com/2011_08_01_archive.html
*  Publications | Micro, Nano, and Molecular Systems - Max Planck Institute for Intelligent Systems
... high-density data storage and optical tweezers that require spatial control of intricate optical(2) or acoustic fields(3,4) ... suitable for tracking refractive index changes. This sensing modality offers strong optical contrast even in the presence of ... resulting in slip velocities at the particle surface and thus motion of the particle relative to the fluid. However, it remains ... This motion in the bulk has been further confirmed using holographic microscopy. A theoretical model is presented within the ...
  http://pf.is.mpg.de/publications?publication_type%5B%5D=Article
*  Peer Fischer | Max Planck Institute for Intelligent Systems
... high-density data storage and optical tweezers that require spatial control of intricate optical(2) or acoustic fields(3,4) ... suitable for tracking refractive index changes. This sensing modality offers strong optical contrast even in the presence of ... It is therefore also a major obstacle for the efficient delivery of particle-based drug carriers. The acidic stomach lining in ... This motion in the bulk has been further confirmed using holographic microscopy. A theoretical model is presented within the ...
  http://www.is.mpg.de/person/fischer
*  Blog on Optical Tweezers: February 2010
... particle follows has been predicted to depend exquisitely sensitively on such properties as the particle's size and refractive ... We confirm these predictions by measuring the transport of colloidal silica spheres through arrays of holographic optical traps ... the exchange of momentum between light and arbitrary three-dimensional objects. Our formulation can be used to study the time ... Optical fibre probe-based near-field optical tweezers overcomes the diffraction limit of conventional optical tweezers, ...
  http://opticaltweezers.blogspot.com/2010/02/
*  Patente US7056746 - Array cytometry - Google Patentes
... a procedure for the creation of material surfaces with desired properties and for the fabrication of surface-mounted optical ... Individual beads may be removed from an array formed in response to an electric field by the application of optical tweezers. ... This effect forms the basis of holographic techniques in optical information processing applications. ... a and 9 b are illustrations of two mechanisms of particle sorting, and FIG. 9. c is an illustration of the oxide profile of FIG ...
  http://www.google.es/patents/US7056746
*  Blog on Optical Tweezers: May 2010
We present a study of the optical force on a small particle with both electric and magnetic response, immersed in an arbitrary ... In this paper, we first overview two optical techniques, namely digital holographic microscopy and holographic optical tweezers ... Multiple trapping of both the low refractive index rod-like Escherichia coli bacteria and 253 nm plasmonic GNPs dispersed in ... Optical Fiber Technology (1) Optical Materials (1) Optical Materials Express (3) Optical Memory and Neural Networks (1) Optical ...
  http://opticaltweezers.blogspot.com/2010_05_01_archive.html
*  Blog on Optical Tweezers: March 2010
The unexpected fact that a spherical dielectric particle with refractive index higher than the surrounding medium will not ... We demonstrate the utility of our approach with simultaneous calibration of multiple holographic optical traps. ... the sensor allows for direct shear stress detection at arbitrary positions in straight and curved microfluidic devices. ... Optical Fiber Technology (1) Optical Materials (1) Optical Materials Express (3) Optical Memory and Neural Networks (1) Optical ...
  http://opticaltweezers.blogspot.com/2010_03_01_archive.html
*  Blog on Optical Tweezers: January 2011
Holographic optical tweezers are used to make comparative measurements of the hygroscopic properties of single component ... We combine single RBC optical tweezers and flow experiments with corresponding simulations based on dissipative particle ... Two liquids with different refractive indices (RIs) are introduced into the control channel to form two different flow patterns ... The method can handle objects with an arbitrary shape, including objects with dispersive dielectric and/or magnetic material ...
  http://opticaltweezers.blogspot.com/2011_01_01_archive.html
*  Blog on Optical Tweezers: March 2012
... a convolution approach for the generation of optical bottle beams that combines established techniques of holographic optical ... Particle & Particle Systems Characterization (2) Peptide Science (1) Philosophical Magazine (1) Philosophical Transactions A (4 ... Furthermore, the presented phase shaping technique allows for the dynamic manipulation of absorbing particles along arbitrary ... and refractive index contrast $m$ and decreases with NA. The gradient force dominates for small trapping parameters, the ...
  http://opticaltweezers.blogspot.com/2012_03_01_archive.html
*  Blog on Optical Tweezers: December 2010
We demonstrate a fast and direct calibration method for systems using a single laser for optical tweezers and particle position ... Particles can experience different optical forces depending on their size and/or optical properties, such as refractive index. ... We develop an integrated system of holographic optical trapping and multimodal nonlinear microscopy and perform simultaneous ... Our technique can potentially allow for trap stiffness calibration along an arbitrary direction in three dimensions.. DOI Email ...
  http://opticaltweezers.blogspot.com/2010/12/
*  OSA | Laser Science 2016
Reconstruction of Refractive Index Profile of Photonic Crystal Fiber Using Intensity Based Optical Diffraction Tomography ... A self-consistent method for the determination of the complex refractive index of arbitrary absorptance thin films ... Quantitative analysis of stainless steel corrosion by reflective digital holographic microscopy. Y. Pourvais, P. Asgari, P. ... Conditions Leading to Eryptosis in Erythrocytes: A Raman Tweezers Study. Surekha Barkur, Aseefhali Bankapur, and Santhosh ...
  https://www.osapublishing.org/conference.cfm?meetingid=69&yr=2016
*  OSA | OL Early Posting
The optical-optical slope efficiency and the cladding absorption spectra of the Tm-doped fiber with gamma-ray irradiation and ... Abstract: We propose a new technique for three-dimensional (3-D) imaging in arbitrary spectral intervals. It is based on a ... Abstract: We demonstrate that the Joule heating of the volume Bragg grating recorded in chloride photo-thermo-refractive glass ... We present scaling trends in the accelerated beam profiles, charge and spectra, which are supported by particle-in-cell ...
  https://www.osapublishing.org/ol/upcoming.cfm?id=120122
*  Poster Presentation Program | ILCC2018
P4-C1-11 Shing Trong Wu "Optical vortices lattices based on holographic polymer dispersed liquid crystal films". P4-C1-12 ... "Optically controllable orbital motion of dye-doped liquid crystal microspheres based on optical vortex tweezers". P1-C2-11 ... P2-C2-4 Eric Grelet "When bigger is faster: how non-commensurability in particle size favors self-diffusion in smectics". P2-C2 ... P1-C2-44 Kyohei Hisano "Arbitrary Two-Dimensional Molecular Alignment Directed by Scanning Wave Photopolymerization". P1-C2-45 ...
  http://ilcc2018.org/poster-presentation-program/
*  OSA | OL Early Posting
... optical tweezers, and nanolithography. The integration of phase and polarization manipulation on a single optical device might ... The refractive index change obtained from these measurements is in good agreement with the phase-shift measurements. Finally, ... Finally, this proposal can be applied to create a novel entangled state between a particle-like photonic qubit and a wave-like ... Using a phase-only SLM with an appropriate algorithm to generate a holographic pattern, we project a beamlet array within a ...
  https://www.osapublishing.org/ol/upcoming.cfm?page=3
*  Blog on Optical Tweezers: May 2012
... holographic optical tweezers). Coupled with microfluidic techniques, holographic optical tweezers have promised development of ... viscosity of a fluid can be measured by tracking the motion of a suspended micron-sized particle trapped by optical tweezers. ... Specifically, we use silicon nanospheres whose high refractive index makes well-defined optical resonances feasible. The strong ... Dynamic simulation is a powerful tool to observe the behavior of arbitrary shaped particles trapped in a focused laser beam. ...
  http://opticaltweezers.blogspot.com/2012/05/
*  Droplet-Based Particle Sorting - Patent application
... optical (e.g., opto-electrowetting, optical tweezers), and chemical means (e.g., chemical gradients). When these techniques are ... Examples of suitable storage mediums include magnetic storage, optical storage, phase-change memory, holographic storage, ... 0405] The filler fluid may be selected based on its refractive index to either match the droplet to prevent refraction of light ... functionality of the device by allowing protocols with arbitrary numbers of temperature points to be implemented. Furthermore, ...
  http://www.patentsencyclopedia.com/app/20150053562