Results 41 to 50 of about 705,634 (314)

Application of a liquid crystal spatial light modulator to laser marking [PDF]

, 2011
Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces.
Beck, Rainer J, Hand, Duncan P., Parry, Jonathan P., Shephard, Jonathan D.   +3 more
core   +1 more source

Numerical investigation of lensless zoomable holographic multiple projections to tilted planes

, 2014
This paper numerically investigates the feasibility of lensless zoomable holographic multiple projections to tilted planes. We have already developed lensless zoomable holographic single projection using scaled diffraction, which calculates diffraction ...
Endo, Yutaka, Hasegawa, Satoki, Hirayam, Ryuji, Hiyama, Daisuke, Ito, Tomoyoshi, Kakue, Takashi, Makowski, Michal, Nagahama, Yuki, Okada, Naohisa, Shimobaba, Tomoyoshi   +9 more
core   +1 more source

Compressive Holographic Video [PDF]

, 2016
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image.
Chen, Huaijin, Cossairt, Oliver, He, Kuan, Katsaggelos, Aggelos K., Spinoulas, Leonidas, Tian, Lei, Wang, Zihao   +6 more
core   +5 more sources

A Study on Augmented 3D Display Optimization Based on Holographic Optical Element for High Depth and Magnified Image

Frontiers in Physics, 2021
Modern Pepper's ghost—“floating hologram”—systems generally use transparent screens called half mirrors or foils. this system must have the same screen size as the image size in order to display a large-sized image.
Sungjae Ha, Leehwan Hwang, Jaehyun Lee, Philippe Gentet, Soonchul Kwon, Seunghyun Lee   +5 more
doaj   +1 more source

Analysis and interpretation of the Seidel aberration coefficients in digital holography [PDF]

, 2011
Peer reviewedPublisher ...
Champagne, Colomb, Colomb, Colomb, Haist, Hobson, Latta, Meier, Miccio, Vikram, Zhou   +10 more
core   +1 more source

Ultra-lightweight and wide field of view augmented reality virtual retina display based on optical fiber projector and volume holographic lens

Chinese Optics Letters (COL), 2019
A novel see-through virtual retina display (VRD) system is proposed in this Letter. An optical fiber projector is used as the thin-light-beam source, which is modified from a laser scan projector by separating the laser sources and the scan mechanical ...
Zhidong Chen, X. Sang, Hui Li, Yuan-ping Wang, Linmin Zhao   +4 more
semanticscholar   +1 more source

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

A Step-by-step Guide to the Realisation of Advanced Optical Tweezers [PDF]

, 2015
Since the pioneering work of Arthur Ashkin, optical tweezers have become an indispensable tool for contactless manipulation of micro- and nanoparticles.
Gigain, Sylvain, Jones, Philip H., Marago, Onofrio M., Pesce, Giuseppe, Sasso, Antonio, Volpe, Giorgio, Volpe, Giovanni   +6 more
core   +3 more sources

Holographic Lens Array for Solar Collector with Large Angle and Expanded Spectral Width

Applied Sciences
Holographic optical elements (HOEs) are promising for solar energy collection due to their advantages of lightweight and high efficiency, but the narrow reconstruction of their angular and spectral widths limits their application.
Changyu Wang, Yuan Xu, Hong Xu, Juan Liu
doaj   +1 more source

Maskless imaging of dense samples using pixel super-resolution based multi-height lensfree on-chip microscopy. [PDF]

, 2012
Lensfree in-line holographic microscopy offers sub-micron resolution over a large field-of-view (e.g., ~24 mm2) with a cost-effective and compact design suitable for field use. However, it is limited to relatively low-density samples.
Greenbaum, Alon, Ozcan, Aydogan
core   +1 more source