Computational Three-Dimensional Imaging System via Diffraction Grating Imaging with Multiple Wavelengths [PDF]
Sensors, 2021 This paper describes a computational 3-D imaging system based on diffraction grating imaging with laser sources of multiple wavelengths. It was proven that a diffraction grating imaging system works well as a 3-D imaging system in our previous studies ...
Jae-Young Jang, Hoon Yoo
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Angular alignment and fidelity of neutron phase-gratings for improved interferometer fringe visibility [PDF]
AIP Advances, 2019 The recent development of phase-grating moiré neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants.
B. Heacock +8 more
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Image Enhancement of Computational Reconstruction in Diffraction Grating Imaging Using Multiple Parallax Image Arrays [PDF]
Sensors, 2020 This paper describes an image enhancement method of computational reconstruction for 3-D images with multiple parallax image arrays in diffraction grating imaging. A 3-D imaging system via a diffraction grating provides a parallax image array (PIA) which
Jae-Young Jang, Hoon Yoo
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Direct Writing of Quasi-Sinusoidal and Blazed Surface Relief Optical Transmission Gratings in Bi12GeO20, Er: LiNbO3 and Er: Fe: LiNbO3 Crystals by Nitrogen Ion Microbeams of 5 MeV and 10.5 MeV Energy [PDF]
SensorsHigh diffraction efficiency optical transmission gratings with quasi-sinusoidal and saw-tooth surface relief profiles were fabricated in Bi12GeO20, Er: LiNbO3 and Er: Fe: LiNbO3 crystals by ion beam implantation.
István Bányász +7 more
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Technologies for Fabricating Large-Size Diffraction Gratings [PDF]
SensorsLarge-size diffraction gratings have played an important role in modern scientific fields such as inertial confinement fusion, large-aperture astronomical telescopes, and high-precision immersion lithography machines with long-stroke displacement stages.
Changfeng Shao, Xinghui Li
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Optimal Design and Analysis of Wide-Band Near-Infrared Hybrid Dielectric Gratings with High Transmission Efficiency [PDF]
MicromachinesSince surface relief transmission gratings have very strict requirements on operators and use environment, according to the semiconductor laser external cavity spectral beam combining system, this paper proposes a design scheme for a semiconductor laser ...
Ye Wang, Yongyi Chen, Li Qin, Lijun Wang
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Study on the Design Method of High-Resolution Volume-Phase Holographic Gratings [PDF]
SensorsVolume-phase holographic gratings are suitable for use in greenhouse gas detection imaging spectrometers, enabling the detection instruments to achieve high spectral resolution, high signal-to-noise ratios, and high operational efficiency.
Shuo Wang +7 more
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Dual coherent light array model for reflective rectangular metallic grating [PDF]
Proceedings of the Estonian Academy of Sciences, 2020 To study the mechanism of periodic change of reflective rectangular metallic gratingsâ diffraction efficiencies, a dual secondary coherent light source array model was established based on the theory of Fabry-Pérot resonator.
Jinkui Chu, Xiangnan Qiao, Ran Zhang
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Effect of Grating Ruling Machine System Errors on Grating Spectral Performance
Applied Sciences, 2022 Grating groove functions scalar theory can describe the light source through the grating interference and diffraction effect of the physical phenomenon of splitting light.
Chao Yang, Xu Chen
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