Results 11 to 20 of about 41,921 (296)

MEMS gratings and their applications

open access: yesInternational Journal of Optomechatronics, 2021
Grating plays an essential role in various optical systems owing to its unique dispersion properties. In recent years, there is increasing demand to miniaturize optical systems for a wide range of field applications.
Guangcan Zhou   +4 more
doaj   +1 more source

Complex method for angular-spectral analysis of volume phase diffraction gratings recorded in photopolymers [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2016
Photopolymer recording materials are nowadays widely used for recording of diffraction gratings and other diffraction elements. For obtaining the best performance of these diffraction gratings for desired applications, it is important to assess these ...
Vojtís̃ek P., Květoň M., Richter I.
doaj   +1 more source

Piecewise Linear Weighted Iterative Algorithm for Beam Alignment in Scanning Beam Interference Lithography

open access: yesPhotonic Sensors, 2019
To obtain a good interference fringe contrast and high fidelity, an automated beam iterative alignment is achieved in scanning beam interference lithography (SBIL).
Ying Song   +4 more
doaj   +1 more source

Simulation of the spatial distribution of scattered light under illumination of a resonant diffraction grating with structured light

open access: yesКомпьютерная оптика, 2023
In this paper, a comparative theoretical analysis and numerical simulation of the operation of various types of diffraction gratings in the far field is carried out using a Fourier transform.
S.N. Khonina, Yu.V. Kapitonov
doaj   +1 more source

Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements [PDF]

open access: yes, 2006
We demonstrate the use of shallow diffraction gratings for quadrature phase interferometry. A single shallow diffraction grating-based Michelson interferometer yields only trivial (0° or 180°) phase shift between different output ports.
Cui, Xiquan   +4 more
core   +1 more source

Comparison and analysis of wavelength calibration methods for prism – Grating imaging spectrometer

open access: yesResults in Physics, 2019
To identify spectral information obtained from the prism - grating imaging spectrometer, it is essential to know the center wavelength for each spectral channel.
Ci Sun   +4 more
doaj   +1 more source

Volume diffraction gratings for optical telecommunications applications: design study for a spectral equalizer [PDF]

open access: yes, 2004
The main characteristics required for a diffraction grating used for demultiplexing functions in spectral equalizing systems are investigated, both theoretically and experimentally.
Chevallier, Raymond   +5 more
core   +3 more sources

Holographic Recording of Unslanted Volume Transmission Gratings in Acrylamide/Propargyl Acrylate Hydrogel Layers: Towards Nucleic Acids Biosensing

open access: yesGels, 2023
The role of volume hydrogel holographic gratings as optical transducers in sensor devices for point-of-care applications is increasing due to their ability to be functionalized for achieving enhanced selectivity.
Paola Zezza   +4 more
doaj   +1 more source

A modified method for separating variables in the diffraction problem of TM-polarized wave on diffraction grating

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. The purpose of the work is to study the diffraction of a TM–polarized electromagnetic wave on diffraction gratings with several strokes on the period. Materials and methods.
Yuriy G. Smirnov
doaj   +1 more source

Large bandwidth, highly efficient optical gratings through high index materials [PDF]

open access: yes, 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   +5 more sources

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