Results 21 to 30 of about 12,991 (264)
Weighted Constraint Iterative Algorithm for Phase Hologram Generation
Applied Sciences, 2020 A weighted constraint iterative algorithm is presented to calculate phase holograms with quality reconstruction. The image plane is partitioned into two regions where different constraint strategies are implemented during the iteration process.
Lizhi Chen +5 more
doaj +1 more source
Applied Sciences, 2021 Computer-generated hologram (CGH) null correctors are used as accuracy standards for interferometric measurements of optical surfaces and optical systems.
Yingying Bai +5 more
doaj +1 more source
Binary Computer-Generated Holograms by Simulated-Annealing Binary Search
Photonics, 2022 The binary computer-generated hologram (BCGH) has attracted much attention recently because it can address the high-speed binary spatial light modulator (SLM), such as a digital micromirror device (DMD) SLM.
Jung-Ping Liu, Chen-Ming Tsai
doaj +1 more source
Monochrome Image Hologram (MIH)
مجلة بغداد للعلوم, 2008 A new computer-generated optical element called a monochrome image hologram (MIH) is described. A real nonnegative function to represent the transmittance of a synthesized hologram is used.
Baghdad Science Journal
doaj +1 more source
Reversible Mode Switching in Y coupled Terahertz Lasers [PDF]
, 2013 Electrically independent terahertz (THz) quantum cascade lasers (QCLs) are optically coupled in a Y configuration. Dual frequency, electronically switchable emission is achieved in one QCL using an aperiodic grating, designed using computer-generated ...
Beere, Harvey E. +4 more
core +2 more sources
Diseño de un dispositivo compacto para generar y testear vórtices ópticos [PDF]
, 2017 Presentamos un diseño compacto para generar y testear diferentes vórtices ópticos con momento angular orbital (OAM). El diseño consiste en una máscara que contiene un holograma binario y un pinhole.
Capeluto, Maria Gabriela +3 more
core +1 more source
Photolithographic fabrication method of computer-generated holographic interferograms [PDF]
, 1989 We consider the fabrication of high-quality interferogram-type diffractive optical elements with conventional photolithographic techniques and compare the results with those achievable with electron-beam lithography. The fringes associated with the phase
Byckling, Eero +6 more
core +1 more source
Compression of Phase-Only Holograms with JPEG Standard and Deep Learning
Applied Sciences, 2018 It is a critical issue to reduce the enormous amount of data in the processing, storage and transmission of a hologram in digital format. In photograph compression, the JPEG standard is commonly supported by almost every system and device.
Shuming Jiao +5 more
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High Resolution Multiview Holographic Display Based on the Holographic Optical Element
Micromachines, 2023 Limited by the low space-bandwidth product of the spatial light modulator (SLM), it is difficult to realize multiview holographic three-dimensional (3D) display.
Xiujuan Qin +7 more
doaj +1 more source
Comparison of beam generation techniques using a phase only spatial light modulator [PDF]
, 2016 Whether in art or for QR codes, images have proven to be both powerful and efficient carriers of information. Spatial light modulators allow an unprecedented level of control over the generation of optical fields by using digital holograms.
Arnold, Aidan S. +4 more
core +1 more source