Optimization of plasmon–plasmon coupling in photorefractive layered media [PDF]
In this paper we study grating-induced plasmon–plasmon coupling in photorefractive layered media using a weakcoupling approximation. The method used is applicable to general layered structures that support both plasmonic and optical modes, such as ...
Daly, K.R. +3 more
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Mid-infrared volume phase gratings manufactured using ultrafast laser inscription [PDF]
We report on the ultrafast laser inscription (ULI) of volume phase gratings inside gallium lanthanum sulphide (GLS) chalcogenide glass substrates. The effect of laser pulse energy and grating thickness on the dispersive properties of the gratings is ...
Thomson, Robert R +3 more
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Polarization-Independent Two-Layer Grating With Five-Port Splitting Output Under Normal Incidence
In this paper, we report a two-layer five-port diffraction grating by a polarization-independent design under normal incidence. To be different from conventional five-port gratings, initially, we design a novel two-layer grating with operation in ...
Bowen Gong, Huiying Wen, Hongtao Li
doaj +1 more source
Optimal Control of Passive Cascaded Liquid Crystal Polarization Gratings
The incidence angle of a beam entering a liquid crystal variable retarder (LCVR) and the liquid crystal polarization grating (LCPG) is greater when the LCPG is utilized in the quadrature cascade, which reduces the diffraction efficiency.
Huan Qin +3 more
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Electromagnetic wave diffraction on a “strip grating – ferromagnetic half-space” composite structure: surface-wave resonances [PDF]
Subject and Purpose. A theoretic study is given to the diffraction of a monochromatic plane E-polarized electromagnetic wave on a composite structure like a periodic strip grating bordering a half-space filled with a lossy homogeneous gyrotropic ...
A.V. Brovenko +3 more
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Efficient Scattering Analysis of Arbitrarily Shaped Local Defect in Diffraction Grating [PDF]
We propose an algorithm for the scattering analyses of gratings with various local defects based on the difference-field boundary-element method (DFBEM).
SUGISAKA, Jun-ichiro +2 more
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Optimization of parameters of multilayer diffraction gratings using needle variations
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]
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
doaj +1 more source

