Results 21 to 30 of about 15,333 (266)
Optimization of parameters of multilayer diffraction gratings using needle variations
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022 Background. The purpose of the work is to optimize the diffraction efficiency in the first diffraction order of a multilayer diffraction grating. Material and methods. Needle variations are used to optimize diffraction efficiency.
V.Yu. Martynova +2 more
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THE FREQUENCY TUNNING RANGE OF DIFFRACTION RADIATION OSCILLATOR WITH PERIODICAL STRUCTURE IN A DOUBLE GRATING FORM [PDF]
Радиофизика и электроника, 2016 The diffraction radiation oscillator is one of the perspective sources for millimeter and T-wave, and it demands further improvement of its output characteristics.
I. O. Kovalov, V. S. Miroshnichenko
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Generation of diffraction-free petallike beams based on stationary phase principle
Results in Physics, 2022 Lately, a kind of so-called “combined half-integer Bessel-like beams,” in which their subfamilies include radial carpet, petallike, and ringlike vortex beams, has been generated using a radial periodic grating.
Ning Gong +5 more
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Compact, astigmatism corrected cross-grating spectrometer [PDF]
EPJ Web of Conferences, 2020 Compact cross-grating spectrometers are inspired by classical high-end Echelle spectrometers and allow to acquire a large spectrum with a high spectral resolution in a single shot.
Kraus Matthias +8 more
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AIP Advances, 2019 The recent development of phase-grating moiré neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants.
B. Heacock +8 more
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Nanophotonics, 2021 Bound states in the continuum (BICs) are observed in optical cavities composed of a high refractive index periodic structure embedded in significantly lower refractive index surroundings, enabling vertical confinement of the grating modes.
Pruszyńska-Karbownik Emilia +2 more
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Фізика і хімія твердого тіла, 2022 Diffractograms of rotated polyaniline fiber grating were studied experimentally. Based on the obtained results, the diffraction patterns were analyzed and set of experimental data obtained after image digitization was approximated by the least squares ...
P.P. Vankevych +7 more
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Two-dimension trapezoidal grating raytracing based on the scalar diffraction and scattering theory
AIP Advances, 2018 Diffraction grating is a fundamental optical element in spectral measurement or source monochromation. A newly designed grating named as two-dimension trapezoidal grating (TG), which not only has non-harmonic diffraction, non-background contaminations ...
Z. Yang +8 more
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Surface Plasmon Resonances in Sn: In2O3 Thin Films with Diffraction Grating
Proceedings, 2018 We newly proposed transparent conductive oxide with diffraction grating structure as an excitation field of surface plasmon resonance working at near-infrared spectral region.
Noriyuki Hasuike +5 more
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