Results 51 to 60 of about 11,755 (309)

Light trapping properties of cylindrical well diffraction gratings in solar cells: Computational calculations [PDF]

, 2010
Light trapping using diffraction gratings is a promising approach to increasing absorption in solar cells. In this paper, the computationally calculated absorption enhancement expected from a diffraction grating consisting of a triangular array of ...
Tobías Galicia, Ignacio, Luque López, Antonio, Martí Vega, Antonio, Mellor Null, Alexander Virgil   +3 more
core   +1 more source

Locally erasable couplers for optical device testing in silicon on insulator [PDF]

, 2014
Wafer scale testing is critical to reducing production costs and increasing production yield. Here we report a method that allows testing of individual optical components within a complex optical integrated circuit.
Payne, D.N.R., Reed, G.T., Topley, R.P., Mashanovich, G. Z., Peacock, A.C., Mailis, S., Mashanovich, G.Z., Gardes, F. Y., Peacock, A. C., Martinez-Jimenez, G., Gardes, F.Y., Thomson, D. J., Payne, D. N. R., Reed, G. T., Topley, R., O'Faolain, L., Healy, N., Thomson, D.J.   +17 more
core   +1 more source

All‐Solution‐Processed HgTe Quantum Dot Photodetectors for Extended Short‐Wavelength Infrared Range Enhanced by Plasmonic ITO Nanocrystals

Advanced Functional Materials, EarlyView.
All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva, Anastasiia V. Sokolova, Chenxi Guo, Yuanfei Huo, Yulia V. Kuznetsova, Ran An, Aleksandr A. Sergeev, Kam Sing Wong, Tianshuo Zhao, Andrey L. Rogach   +9 more
wiley   +1 more source

A modified method of variable separation for the problem of TE wave diffraction on a diffraction grating with two-layer lines in the period

Учёные записки Казанского университета: Серия Физико-математические науки
The diffraction of an electromagnetic TE wave on multilayer diffraction gratings with several two-layer lines in the period was investigated. Such optical structures are employed in spectral beam combining.
Yu. G. Smirnov, V. Yu. Martynova
doaj   +1 more source

Holographic Writing of Forked Diffraction Gratings on the Surface of a Chalcogenide Glass Semiconductor

Photonics, 2023
We consider the formation of forked diffraction gratings on the surface of a multilayer structure based on chalcogenide glass semiconductors As2S3 and a-Se is.
Nikolay A. Ivliev, Svetlana N. Khonina, Vladimir V. Podlipnov, Sergey V. Karpeev   +3 more
doaj   +1 more source

Grazing incidence diffraction by epitaxial multilayered gratings [PDF]

, 1998
Multilayered gratings have been investigated by high-resolution grazing incidence diffraction, employing non-coplanar triple crystal diffractometry. A theoretical treatment has been developed based on the distorted wave Born approximation for multilayer ...
U Pietsch, Darowski, N., G.T Baumbach, J Schneck, Baumbach, G. T, N Darowski, Pietsch, U., Talneau, A., Leprince, L., L Leprince, Schneck, J., A Talneau, Lübbert, D., D Lübbert   +13 more
core   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

Advanced Functional Materials, EarlyView.
Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani, Marta Loletti, Felix Nippert, Eduardo Bedê Barros, Zbigniew Galazka, Hans Tornatzky, Christian Thomsen, Juan Sebastián Reparaz, Riccardo Rurali, Markus R. Wagner   +9 more
wiley   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

INSCRIPTION PROCESS RESEARCH AND OPTIMIZATION FOR SUPERIMPOSED FIBER BRAGG GRATINGS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2017
Subject of Research. The paper presents the study of inscription process distinctive features for superimposed fiber Bragg gratings. We analyzed spectral characteristics changes of superposition segregated gratings that appear during inscription of ...
Kirill A. Konnov, Yulia I. Slozhenikina, Alexey I. Gribaev, Sergey V. Varzhel , Victoria A. Novikova, Yulia K. Zalesskaya, Andrey A. Dmitriev   +6 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, Zhihao Cui, Lai Wei, Hongjie Liu, Quanping Fan, Yangfan He, Bin Sun, Jihui Chen, Leifeng Cao   +8 more
doaj   +1 more source