Dispersion-engineered metasurfaces reaching broadband 90% relative diffraction efficiency [PDF]
Nature Communications, 2023 Dispersion results from the variation of index of refraction as well as electric field confinement in sub-wavelength structures. It usually results in efficiency decrease in metasurface components leading to troublesome scattering into unwanted ...
Wei Ting Chen +5 more
doaj +3 more sources
Diffraction efficiency of strong volume holograms [PDF]
Optics Letters, 1990 We investigate the diffraction efficiency of strong volume holograms in which the coupling parameter is several times that needed for maximum diffraction efficiency.
John H Hong, D Psaltis, David J Brady
exaly +5 more sources
Optimization of Optical Phase Profile in Beam Deflector with Advanced Simulation Method for High Diffraction Efficiency [PDF]
Micromachines, 2022 Controlling the phase of light with a high efficiency and precision is essential for applications in imaging, tunable devices, and optical systems. Spatial light modulators (SLMs) based on liquid crystals (LCs) have been regarded as one of the best ...
Andrey Manko +5 more
doaj +2 more sources
Tailoring Wavelength-Selective Diffraction Efficiency Using Triple-Layer Double-Relief Blazed Gratings Incorporating Materials with Intersecting Dispersion Curves [PDF]
Photonics, 2023 Diffractive optical elements (DOEs) fundamentally provide the possibility to simultaneously utilize multiple orders for different imaging functions within a system.
Lia Schmidt +2 more
doaj +2 more sources
Optical Enhancement of Diffraction Efficiency of Texas Instruments Phase Light Modulator for Beam Steering in Near Infrared. [PDF]
Micromachines (Basel), 2022 Guan J, Dong Z, Deng X, Takashima Y.
europepmc +3 more sources
Conditions for Minimizing the Computational Complexity of the RCWA Calculation of the Diffraction Efficiency of Sawtooth Two-Layer Double-Relief Microstructures [PDF]
Photonics, 2023 In this study, novel recommendations are presented and substantiated for selecting the number of modes and optical thicknesses of flat lattice slabs that make up microreliefs, which minimize the computational complexity of the rigorous coupled-wave ...
Grigoriy I. Greisukh +4 more
doaj +2 more sources
Optical characterization of ultra-high diffraction efficiency gratings [PDF]
Applied Optics, 2006 We report on the optical characterization of an ultra-high diffraction efficiency grating in 1st order Littrow configuration. The apparatus used was an optical cavity built from the grating under investigation and an additional high reflection mirror ...
Braginsky +9 more
core +5 more sources
Optical Modulation of the Diffraction Efficiency in an Indoline Azobenzene/Amorphous Polycarbonate Film. [PDF]
Nanoscale Res Lett, 2016 Williams GV +5 more
europepmc +3 more sources
Diffraction Efficiency Adjustment to Record High Quality Color Holograms
Ingeniería y Ciencia, 2015 In this article, we report the experimental values of required exposure to obtain the maximum diffraction efficiencies in PFG-03C Slavich film on independent recordings and RGB multiplexed recordings.
D Velásquez, L M Giraldo
doaj +3 more sources
Analytic Design of Segmented Phase Grating for Optical Sensing in High-Precision Alignment System
Sensors, 2021 Ultra-precision measurement systems are important for semiconductor manufacturing processes. In a phase grating sensing alignment (PGA) system, the measurement accuracy largely depends on the intensity of the diffraction signal and its signal-to-noise ...
Guanghua Yang +4 more
doaj +1 more source