Results 11 to 20 of about 2,028 (199)
Micro-electro-mechanical variable blaze gratings [PDF]
Proceedings IEEE The Tenth Annual International Workshop on Micro Electro Mechanical Systems. An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots, 2002 Two types of micro-electro-mechanical variable blaze gratings (VBGs) have been designed, fabricated, and tested. The gratings operate by adjusting the blaze angle of each slat so that the specular reflection of the incident light matches a particular grating diffraction order.
D. Burns, Victor M. Bright
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High-Density Arrayed Spectrometer with Microlens Array Grating for Multi-Channel Parallel Spectral Analysis [PDF]
SensorsTo enable multi-channel parallel spectral analysis in array-based devices such as micro-light-emitting diodes (Micro-LEDs) and line-scan spectral confocal systems, the development of compact array spectrometers has become increasingly important.
Fangyuan Zhao +2 more
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Azimuthal rotation-controlled nanoinscribing for continuous patterning of period- and shape-tunable asymmetric nanogratings [PDF]
Microsystems & NanoengineeringWe present an azimuthal-rotation-controlled dynamic nanoinscribing (ARC-DNI) process for continuous and scalable fabrication of asymmetric nanograting structures with tunable periods and shape profiles.
Useung Lee +9 more
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3D Femtosecond Laser Beam Deflection for High‐Precision Fabrication and Modulation of Individual Voxelated PCM Meta‐Atoms [PDF]
Advanced ScienceOptical metasurfaces have found widespread applications in the field of optoelectronic devices. However, achieving dynamic and flexible control over metasurface functionalities, while also developing simplified fabrication methods for metasurfaces ...
Weina Han +9 more
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Design and Fabrication of Silicon-Blazed Gratings for Near-Infrared Scanning Grating Micromirror
Micromachines, 2022 Blazed gratings are the critical dispersion elements in spectral analysis instruments, whose performance depends on structural parameters and topography of the grating groove.
Sinong Zha +4 more
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Micromachines, 2022 Convex blazed gratings, which can effectively broaden the spectral range and improve spectral resolution, have gradually evolved into a crucial optical component for lightweight and compact imaging spectroscopy instruments.
Huang Li +3 more
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Dielectric binary blazed gratings [PDF]
Applied Optics, 1993 Artificial index gratings, which are composed of binary microstructures of sizes less than the incident wavelength, are analyzed as functions of the filling factor or duty cycle of the microstructures. Different models for calculating the optimum duty cycles to produce high blazed diffraction efficiency are compared.
Haidner, H. +2 more
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Flattop Beam Shaping Using Hybrid Gratings
IEEE Photonics Journal, 2022 A new method of laser beam shaping with hybrid gratings is presented. The hybrid gratings consist of a blazed grating and a gradient binary grating. The blazed grating is used to separate the incident Gaussian beam into zero order and nonzero diffraction
Zhongsheng Zhai +5 more
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Binary blazed reflection gratings [PDF]
Applied Optics, 1994 A reflection grating with a binary surface profile is presented that has high diffraction efficiency. The measured intensity for the + 1st diffracted order was 77%. The binary grating is composed of a minilattice with feature sizes comparable with the wavelength of the incident light.
Collischon, M. +7 more
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ERROR ANALYSIS OF THE DISPERSION-COMPENSATED WIDE-BAND POLARIZATION SAGNAC INTERFEROMETER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Imaging polarimetry can obtain two-dimensional intensity distribution information and its corresponding states of polarization from the target simultaneously.
J. Zhu +5 more
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