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
doaj +3 more sources
Liquid Crystal Blazed Grating Beam Deflector [PDF]
Diffractive Optics and Micro-Optics, 1998 Non-mechanical beam steering devices can play a crucial role in many applications, such as optical interconnects, optical communications and optical data storage.[1] However, current steering devices either require high voltage or complicated fabrication technology.
Wang, Xu +4 more
core +12 more sources
Ultra-Precision Cutting and Characterization of Reflective Convex Spherical Blazed Grating Elements [PDF]
Micromachines, 2022 In this work, based on the diffraction principle of reflective blazed grating, the structure size of the convex spherical blazed grating unit is determined, the machining accuracy of the convex spherical blazed grating is formulated, the effects of tool ...
Huang Li +3 more
doaj +2 more sources
Blazed subwavelength grating coupler [PDF]
Photonics Research, 2022 Short-wavelength mid-infrared (2–2.5 μm wave band) silicon photonics has been a growing area to boost the applications of integrated optoelectronics in free-space optical communications, laser ranging, and biochemical sensing. In this spectral region, multi-project wafer foundry services developed for the telecommunication band are easily adaptable ...
Rongxiang Guo +5 more
openaire +4 more sources
Large-Area Binary Blazed Grating Coupler between Nanophotonic Waveguide and LED [PDF]
The Scientific World Journal, 2014 A large-area binary blazed grating coupler for the arrayed waveguide grating (AWG) demodulation integrated microsystem on silicon-on-insulator (SOI) was designed for the first time.
Hongqiang Li +7 more
doaj +2 more sources
Progress in the Preparation and Characterization of Convex Blazed Gratings for Hyper-Spectral Imaging Spectrometer: A Review [PDF]
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
doaj +2 more sources
Efficient Vertical-Cavity Mid-IR Thermal Radiation to Silicon-Slab Waveguide Coupling Using a Shallow Blazed Grating [PDF]
Proceedings, 2017 In this work we investigate the coupling of radiation originating from a vertical-cavity enhanced thermal emitter (VERTE) into an optical waveguide, which can, for instance, act as a sensing element.
Gerald Pühringer, Bernhard Jakoby
doaj +2 more sources
Quantum diffraction of biphotons at a blazed grating [PDF]
Journal of the Optical Society of America B, 2009 Correlations between photons are interesting for a number of applications and concepts in metrology, in particular for resolution improvements in different methods of quantum imaging. We demonstrate the application of a blazed grating for the characterization of the degree of spatial correlation of biphotons.
Ostermeyer, Martin +2 more
openaire +4 more sources
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
openaire +6 more sources
Design and Study of a Reflector-Separated Light Dispersion-Compensated 3D Microscopy System [PDF]
Sensors, 2023 The secondary-phase grating-based tomographic microscopy system, which is widely used in the biological and life sciences, can observe all the sample multilayer image information simultaneously because it has multifocal points.
Hui Li +8 more
doaj +2 more sources