Results 21 to 30 of about 2,028 (199)

A high transmission tender X-ray monochromator employing a matched pair of multilayer grating and mirror. [PDF]

J Synchrotron Radiat
Monochromators based on multilayer gratings can provide a very high throughput on an extended energy range (1 to 5 keV) in the tender X‐ray domain. A multilayer mirror must be associated with the grating to achieve a fixed exit direction. We show how important an accurate modeling of the reflectivity of these two elements is to achieve both an optimal ...
Dennetiere D, Moreno T, Capitanio B, Thomasset M, Delmotte F, Soufli R, Burcklen C, Meltchakov E, Ciatto G, Fontaine P, Mercère P, Polack F.   +11 more
europepmc   +2 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, Lei Wang, Bruce Zhi Gao, Junle Qu, Yonghong Shao   +4 more
doaj   +1 more source

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, Wilson, Daniel W., Muller, Richard E., Maker, Paul D., Psaltis, Demetri   +4 more
openaire   +4 more sources

Blazed subwavelength grating coupler

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, Shujiao Zhang, Haoran Gao, Ganapathy Senthil Murugan, Tiegen Liu, Zhenzhou Cheng   +5 more
openaire   +3 more sources

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

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

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, Wanzhuo Li, Wenhao Duan, Zhanhua Huang, Huaidong Yang   +4 more
doaj   +1 more source

Low line density blazed gratings with low blaze angles

Journal of Physics: Conference Series, 2022
Abstract Gratings installed in synchrotron beamlines and instruments have standard line densities ranging from ~300 L/mm up to 2400 L/mm with blaze angles from 0.3° to 2°. For FEL beamlines lower line densities and lower angles are required. To manufacture these in the required high quality poses some challenges with regard to the ruling
Lemke, S., Alimov, S., Knedel, J., Kutz, O., Rudolph, I., Seliger, T., Sokolov, A.   +6 more
openaire   +2 more sources

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, del Mar Sánchez-López María, Hernández-García Carlos, Moreno Ignacio   +3 more
doaj   +1 more source

Blazed Gratings Recorded in Absorbent Photopolymers [PDF]

Materials, 2016
Phase diffractive optical elements, which have many interesting applications, are usually fabricated using a photoresist. In this paper, they were made using a hybrid optic-digital system and a photopolymer as recording medium. We analyzed the characteristics of the input and recording light and then simulated the generation of blazed gratings with ...
Roberto Fernández, Sergi Gallego, Andrés Márquez, Víctor Navarro-Fuster, Augusto Beléndez   +4 more
openaire   +3 more sources