Results 71 to 80 of about 12,678 (263)

Holographic optical trapping

, 2005
Holographic optical tweezers use computer-generated holograms to create arbitrary three-dimensional configurations of single-beam optical traps useful for capturing, moving and transforming mesoscopic objects.
Allen, Alonzo, Arlt, Ashkin, Ashkin, Crocker, Curtis, Curtis, Dufresne, Dufresne, Gahagan, Garces-Chavez, Grier, Guo, He, He, Hughes, Jesacher, Jordan, Korda, Koss, Ladavac, Ladavac, Leach, Liesener, MacDonald, Meister, Melville, Mogensen, Neto, O'Neil, Polin, Reicherter, Reimann, Roichman, Sacks, Sasaki, Simpson, Sinclair, Soskin, Sundbeck   +40 more
core   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

Imaging properties of computer-generated holograms: the phase distribution effect in the objects’ space

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
In the paper, the influence of phase distribution over the objects’ space on resolution and depth of field of computer-generated holograms has been investigated.
Koreshev Sergey, Smorodinov Denis, Marina Frolova, Starovoitov Sergei   +3 more
doaj   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Spin and wavelength multiplexed nonlinear metasurface holography

Nature Communications, 2016
Metasurfaces offer an approach for computer generated holograms with good efficiency and ease of fabrication. Here, Ye et al.report on spin and wavelength multiplexed nonlinear metasurface holography, showing construction of holographic images using ...
Weimin Ye, Franziska Zeuner, Xin Li, Bernhard Reineke, Shan He, Cheng-Wei Qiu, Juan Liu, Yongtian Wang, Shuang Zhang, Thomas Zentgraf   +9 more
doaj   +1 more source

Fabrication of Dynamic Holograms on Polymer Surface by Direct Laser Writing for High-Security Anti-Counterfeit Applications

IEEE Access, 2019
Anti-counterfeit technology has attracted much attention with the development of economy, because many counterfeit products that are difficult for identification have been produced, which extremely damage the interests of consumers.
Jiahao Miao, Xinghuo Ding, Shengjun Zhou, Chengqun Gui   +3 more
doaj   +1 more source

Computer Generated Holograms (CGH) for Testing, Alignment and Positioning of Astronomical and Space Mirrors Aspherical Surfaces [PDF]

EPJ Web of Conferences, 2019
JSC LZOS successfully applies Computer Generated Holograms (CGH) for testing of on- and off-axis surfaces of large-dimensioned optical components for their alignment with respect to interferometer, for defining of aspherical surface optical vertex ...
Semenov Aleksandr, Abdulkadyrov Magomed, Dobrikov Nikolay, Ignatov Aleksandr, Patrikeev Vladimir, Pridnya Vitaliy, Polyanchikov Andrey, Nasyrov Ruslan   +7 more
doaj   +1 more source

Ultra‐Durable Information‐Encoded Anti‐Counterfeiting Self‐Assembled Nanocrystal Labels

Advanced Optical Materials, EarlyView.
Ultra‐durable cost‐effective information‐encoded anti‐counterfeiting labels are fabricated to secure semiconductor chips. A novel method is used to self‐assemble colloidal quantum wells (CQWs) into color bars. Information can be encoded spatially, spectrally, and opto‐spatially.
Taha Haddadifam, Farzan Shabani, Mustafa Kalay, Aisan Khaligh, Evren Mutlugun, Mustafa Serdar Onses, Hilmi Volkan Demir   +6 more
wiley   +1 more source

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source

High-Resolution Spectrometer-on-Chip Based on Digital Planar Holography

IEEE Photonics Journal, 2011
Digital planar holography enables the creation of a new generation of integrated photonic circuits with desired transfer function. We give here, for the first time, the basis for designing computer-generated planar holograms and demonstrate their ...
Christophe Peroz, Alexander Goltsov, Scott Dhuey, Pavel Sasorov, Bruce Harteneck, Igor Ivonin, Sergey Kopyatev, Stefano Cabrini, Sergey Babin, Vladimir Yankov   +9 more
doaj   +1 more source