Results 11 to 20 of about 2,070,111 (343)

Generalized Space-Time-Periodic Diffraction Gratings: Theory and Applications [PDF]

open access: yesPhysical Review Applied, 2019
This paper studies the theory and applications of the diffraction of electromagnetic waves by space-time periodic (STP) diffraction gratings. We show that, in contrast with conventional spatially periodic grating, a STP diffraction grating produces ...
Sajjad Taravati, G. Eleftheriades
semanticscholar   +2 more sources

Design and theoretical analysis of a conical-diffraction-based cross-dispersed spatial heterodyne spectrometer

open access: yesResults in Physics, 2023
A conical-diffraction-based cross-dispersed spatial heterodyne spectrometer (CDCDSHS) is presented. Conical diffraction is introduced, and one grating in the SHS is rolled around the central normal of its surface to expand the spectral range.
Qihang Chu   +5 more
doaj   +1 more source

Large‐Scale Multiplexed Azopolymer Gratings with Engineered Diffraction Behavior

open access: yesAdvanced Materials Interfaces, 2021
The diffraction of polychromatic light from periodic superficial structures is often responsible for the structural colors observed in Nature. Similarly, engineered microtextures fabricated on metallic or dielectric surfaces can be used to design ...
S. Oscurato   +5 more
semanticscholar   +1 more source

Characterization of Polarization Holographic Gratings Obtained on Azopolymer Thin Films by Digital Holographic Microscopy

open access: yesJournal of Biomedical Photonics & Engineering, 2021
Polarization diffraction gratings are formed by one-step polarization holographic recording in azopolymer thin films. The evolution of the gratings parameters, such as the modulation of diffraction efficiency and relief depth with regard to different ...
Veronica Cazac   +5 more
doaj   +1 more source

Transmission Gratings relying on Huygens Metasurfaces for short-wave to long-wave infrared applications [PDF]

open access: yesEPJ Web of Conferences, 2023
In many spectroscopic applications, diffraction gratings are the pivotal optical component which is used to decompose white light into its spectrum. However, design and manufacturing of diffraction gratings for the infrared spectral domain operating in ...
Flügel-Paul Thomas, Käsebier Thomas
doaj   +1 more source

Electric Field Enhancement Effect of Aluminum Grating With Nanosecond Pulsed Laser Irradiation

open access: yesFrontiers in Physics, 2022
Aluminum grating has wide applications in laser systems and photoelectric equipment. Research on the laser damage characteristics of aluminum grating has guiding significance and application value for improving the laser damage resistance.
Jiamin Wang   +13 more
doaj   +1 more source

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

Diffraction in grating optical filters with angular-selective light transmission [PDF]

open access: yesКомпьютерная оптика, 2020
The effect of diffraction on the directional light transmittance of grating optical filters designed for smart windows is studied. The filter has an angular selective light transmission due to two thin-film gratings formed by "non-transmissive ...
R.S. Zakirullin
doaj   +1 more source

Engineered Diffraction Gratings for Acoustic Cloaking [PDF]

open access: yesPhysical Review Applied, 2018
We show that engineered diffraction gratings can considerably simplify the design and performance of acoustic devices. Acoustic reflecting gratings based on rectangular cavities drilled on an acoustically rigid surface are designed in such a way that all
Yabin Jin   +3 more
semanticscholar   +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

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