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
openaire +5 more sources
Scanless multitarget-matching multiphoton excitation fluorescence microscopy [PDF]
Journal of Innovative Optical Health Sciences, 2018 Using the combination of a reflective blazed grating and a reflective phase-only diffractive spatial light modulator (SLM), scanless multitarget-matching multiphoton excitation fluorescence microscopy (SMTM-MPM) was achieved.
Junpeng Qiu +4 more
doaj +1 more source
Wide band UV/Vis/NIR blazed-binary reflective gratings: two lithographic techniques investigation [PDF]
EPJ Web of Conferences, 2021 We report on subwavelength reflective gratings for hyperspectral applications operating in the 340 nm-1040 nm spectral range. The blazed grating period is 30 μm and is composed of 2D subwavelength binary structures with sizes in-between 120 nm and 350 nm.
Lee Mane-Si Laure +11 more
doaj +1 more source
Preparation of SERS substrate based on blazed grating and its application in pesticide detection
Nantong Daxue xuebao. Ziran kexue ban, 2023 Surface enhanced Raman scattering(SERS) provides fingerprint information of molecules and is a vital tool for molecular detection and analysis. The preparation of large-area, highly sensitive, and uniform flexible transparent SERS substrates is crucial ...
ZANG Junfei XU Meifeng WANG Chaonan
doaj +1 more source
Large bandwidth, highly efficient optical gratings through high index materials [PDF]
, 2008 We analyze the diffraction characteristics of dielectric gratings that feature a high index grating layer, and devise, through rigorous numerical calculations, large bandwidth, highly efficient, high dispersion dielectric gratings in reflection ...
Baldry +17 more
core +9 more sources
Design and fabrication of blazed gratings for a waveguide-type head mounted display [PDF]
, 2020 In a waveguide-type display for augmented reality, the image is injected in the waveguide and extracted in front of the eye appearing superimposed on the real-world scene.
Cuypers, Dieter +4 more
core +1 more source
MEMS blazed gratings fabricated using anisotropic etching and oxidation sharpening
AIP Advances, 2020 Micro-electro-mechanical system (MEMS) blazed gratings are the critical optical elements in high resolution micro-spectrometer systems. The MEMS blazed gratings fabricated by conventional methods are not ideal saw-tooth profiles.
Qiuyu Nie, Yiyuan Xie, Fei Chang
doaj +1 more source
Echelle Grating Spectroscopic Technology for High-Resolution and Broadband Spectral Measurement
Applied Sciences, 2022 Echelle grating provides high spectral resolving power and diffraction efficiency in a broadband wavelength range by the Littrow mode. The spectrometer with the cross-dispersed echelle scheme has seen remarkable growth in recent decades.
Yinxin Zhang +4 more
doaj +1 more source
Mapping partially polarized light to incoherent superpositions of vector beams and vortex beams with orbital angular momentum [PDF]
EPJ Web of Conferences, 2023 Fully polarized light, cylindrical vector beams, and beams with opposite orbital angular momentum (OAM) and their superpositions are respectively represented as points on the Poincaré sphere (PS), the higher-order Poincaré sphere (HOPS) and the OAM ...
Marco David +3 more
doaj +1 more source
Journal of the European Optical Society-Rapid Publications, 2023 We report on subwavelength reflective gratings for hyperspectral applications operating in a very large spectral band (340–1040 nm). Our study concerns a blazed-binary grating having a period of 30 μm and composed of 2D subwavelength structures with size
Lee Mane-Si Laure +11 more
doaj +1 more source