Results 51 to 60 of about 128,668 (300)
Singular value demodulation of phase-shifted holograms [PDF]
, 2015 We report on phase-shifted holographic interferogram demodulation by singular value decomposition. Numerical processing of optically-acquired interferograms over several modulation periods was performed in two steps : 1- rendering of off-axis complex ...
Atlan, Michael, Lopes, Fernando
core +5 more sources
Foveated Retinal Optimization for See-Through Near-Eye Multi-Layer Displays
IEEE Access, 2018 In order to implement 3-D displays with focus cues, several technologies, including multi-layer displays, have been introduced and studied. In multi-layer displays, a volumetric 3-D scene is represented by 2-D layer images via optimization process ...
Seungjae Lee +6 more
doaj +1 more source
Holographic optical scanning elements with minimum aberrations [PDF]
Applied Optics, 1988 An analytical method to design holographic optical elements for focusing laser scanners, especially disk scanners, with minimum aberrations and optimum scan line definition is reported. The results reveal that the focused spot constraint to a straight line is always astigmatic.
Herzig, Hans-Peter, Dändliker, René
openaire +2 more sources
Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching
Advanced Functional Materials, EarlyView.A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey +12 more
wiley +1 more source
Palm-Sized Single-Shot Full-Color Incoherent Digital Holographic Camera System with White Light
Advanced Devices & InstrumentationThe realization of full-color motion-picture holographic imaging with daily-use light is an important research objective. To achieve it, various types of single-shot phase-shifting incoherent digital holography (SSPS IDH) systems have been proposed up to
Tatsuki Tahara, Tomoyoshi Shimobaba
doaj +1 more source
Applied Sciences, 2023 Diffraction gratings are becoming a preferred option for waveguide head-mounted in–out coupling devices due to their flexible optical properties and small size and light weight.
Mianhui Weng +3 more
doaj +1 more source
Journal of Optics, 2020 We propose a digital holographic microscope for the single-shot multicolor three-dimensional (3D) image sensing of specimens illuminated by spatially and temporally incoherent white light.
T. Tahara, T. Ito, Y. Ichihashi, R. Oi
semanticscholar +1 more source
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
International Journal of Polymer Science, 2014 A holographic device characterised by a large angular range of operation is under development. The aim of this study is to increase the angular working range of the diffractive lens by stacking three layers of high efficiency optical elements on top of ...
Hoda Akbari +5 more
doaj +1 more source
See-through display based on commercial photopolymer: Optimization and shrinkage effects
Heliyon, 2023 Nowadays augmented reality, 3D Image, mixed reality and see-through applications are very attractive technologies due to their great potential. Holographic optical elements can provide interesting solutions for injection and extraction of the image in ...
Joan Josep Sirvent-Verdú +6 more
doaj +1 more source