Results 61 to 70 of about 2,230,771 (150)
Computer generated holography with intensity-graded patterns
Frontiers in Cellular Neuroscience, 2016 Computer Generated Holography achieves patterned illumination at the sample plane through phase modulation of the laser beam at the objective back aperture. This is obtained by using liquid crystal-based spatial light modulators (LC-SLMs), which modulate
Rossella Conti +4 more
doaj +1 more source
Nanophotonics, Volume 15, Issue 14, 27 July 2026.Longitudinal Mie resonances in silicon nanodisks, excited by an azimuthally–radially polarized beam, generate strong optical chirality gradients with minimal achiral background. Magnetic quadrupole modes enable selective enantiomer trapping, achieving predicted selectivities over 100 for |κ|≥0.03 $\vert \kappa \vert \ge 0.03$ and robust performance ...
Guillermo Serrera, Pablo Albella
wiley +1 more source
Thermally induced micro-motion by inflection in optical potential
Scientific Reports, 2017 Recent technological progress in a precise control of optically trapped objects allows much broader ventures to unexplored territory of thermal motion in non-linear potentials.
Martin Šiler +5 more
doaj +1 more source
Enantioselective Separation and Negative Transport of Chiral Particles via Optical Needle Fields
Nanophotonics, Volume 15, Issue 13, 13 July 2026.This work proposes an all‐optical strategy that leverages a tailored optical needle field for the enantioselective separation and 3D manipulation of chiral particles. By introducing phase modulation, we engineer a dual‐needle configuration capable of spatially separating and negatively transporting both enantiomers within a single system, offering a ...
Manman Li +7 more
wiley +1 more source
Progress in Phase Calibration for Liquid Crystal Spatial Light Modulators
Applied Sciences, 2019 Phase-only Spatial Light Modulator (SLM) is one of the most widely used devices for phase modulation. It has been successfully applied in the field with requirements of precision phase modulation such as holographic display, optical tweezers, lithography,
Rujia Li, Liangcai Cao
doaj +1 more source
Shaping Matter with Acoustic Waves: From Particles to Functional Structures
Advanced Functional Materials, Volume 36, Issue 58, 20 July 2026.Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg +5 more
wiley +1 more source
Multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals: static and dynamic studies [PDF]
, 2005 The optimization of the experimental parameters of two multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals is investigated.
Camacho, Maria +4 more
core +1 more source
Optical micromanipulation using ultrashort pulsed laser sources [PDF]
, 2007 In this thesis two previously separate fields of study are brought together: optical micromanipulation and ultrashort laser research. Here, the benefits of combining the high peak powers of ultrashort pulsed lasers and conventional optical ...
Little, Helen
core +2 more sources
All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security
Advanced Materials, Volume 38, Issue 38, 8 July 2026.An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak +4 more
wiley +1 more source
Experimental demonstration of holographic three-dimensional light shaping using a Gerchberg-Saxton algorithm [PDF]
, 2005 We use a three-dimensional Gerchberg–Saxton algorithm (Shabtay (2003) Opt. Commun. 226 33) to calculate the Fourier-space representation of physically realizable light beams with arbitrarily shaped three-dimensional intensity distributions.
Courtial, J. +5 more
core +1 more source