Results 61 to 70 of about 41,921 (296)
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
Statistical Analysis of Single-Order Diffraction Grating with Quasi-Random Structures
Photonics, 2023 Single-order diffraction gratings with quasi-random structures are effective optical elements in suppressing harmonics contamination. However, background intensity fluctuations introduced by quasi-random structures may affect the measurement of the ...
Huaping Zang +8 more
doaj +1 more source
Ray tracing program with options for diffraction gratings [PDF]
, 1971 Diffraction theory, developed in vectorial form and coded into ray tracing routines, permits tracing rays of any wavelength through surfaces that are plane, spherical, conical, or aspheric polynomial.
Howell, B. J.
core +1 more source
Self-enhanced diffraction from fixed photorefractive gratings during coherent reconstruction [PDF]
, 1993 We explore, theoretically and experimentally, the effects of self-enhancement (or self-depletion) of the diffraction which occurs during coherent reconstruction from fixed photorefractive gratings.
Kewitsch, Anthony +3 more
core +1 more source
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source
Grating formation in BGG31 glass by UV exposure [PDF]
, 1999 A three-dimensional index variation grating in bulk BGG31 glass written using neither hydrogen loading nor germanium doping is demonstrated. This material is useful for fabricating ion-exchanged waveguides, and its photosensitivity to ultraviolet (UV ...
Geraghty, D. F. +5 more
core +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 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
Advanced Functional Materials, EarlyView.This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden +11 more
wiley +1 more source