Results 61 to 70 of about 42,732 (290)
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 +1 more source
, 2014 The Prime Focus Spectrograph (PFS) is a major instrument under development for the 8.2 m Subaru telescope. Four identical spectrograph modules are located in a room above one Nasmyth focus. A 55~m fiber optic cable feeds light to the spectrographs from a
Arns, James +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley +1 more source
Aperiodic Diffract: Study of diffraction gratings
Modelling in Science Education and Learning, 2014 In this work we introduce a virtual laboratory, APERIODIC DIFFRACT, developed in Matlab GUI (Graphical User Interface) as an informatics tool for teaching the diffractive properties of aperiodic gratings.
Vicente Ferrando Martín +5 more
doaj +1 more source
Advanced modelling of a moderate-resolution holographic spectrograph
, 2017 In the present article we consider an accurate modeling of spectrograph with cascade of volume-phase holographic gratings. The proposed optical scheme allows to detect spectra in an extended wavelength range without gaps providing relatively high ...
Fabrika, Sergei +3 more
core +1 more source
Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?
Advanced Functional Materials, EarlyView.This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee +7 more
wiley +1 more source
Dodecagonal quasicrystals: Construction of 2D lattices and demonstrations using laser pointers
Macedonian Journal of Chemistry and Chemical Engineering, 2022 Photographic slides of an aperiodic dodecagonal tiling were used as two-dimensional diffraction gratings to describe and demonstrate the basic properties of dodecagonal quasicrystals. This paper complements our earlier publication on Penrose (decagonal)
Vladimir M. Petrushevski +1 more
doaj
Scalar-Based Analysis of Phase Gratings Etched in the Micro/nanofabrication Process
IEEE Photonics Journal, 2015 The diffraction characteristics of several types of phase gratings often etched on the substrate by the micro/nanofabrication techniques are analytically explored using scalar-based analysis in this paper.
Shaolin Zhou +3 more
doaj +1 more source
Secondary Grating Formation by Readout at Bragg-null Incidence [PDF]
, 1999 We show that when a dynamic hologram is read out by illumination at the Bragg nulls of a previously recorded grating the diffracted beam inside the medium can result in the recording of two secondary gratings that alter the final selectivity curve.
Adibi, Ali +3 more
core
Compression of extreme-ultraviolet ultrashort pulses by grating configurations [PDF]
, 2015 The design and realization of grating instruments to condition the spectral phase of ultrashort extreme-ultraviolet pulses are discussed. The main application of such configurations is the temporal compression of pulses by compensating the phase chirp ...
Frassetto, Fabio +2 more
core +3 more sources