Search Results - "Goray, L I"

QCL Design Engineering: Automatization vs. Classical Approaches by Dashkov, A. S., Goray, L. I.

“…In this work, we applied automatic design generation techniques to obtain the most efficient quantum cascade laser (QCL) structures for the mid-infrared range…”
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Development of the Design of Super-Multiperiod Structures Grown by Molecular-Beam Epitaxy and Emitting in the Terahertz Range by Gerchikov, L. G., Dashkov, A. S., Goray, L. I., Bouravleuv, A. D.

“…A design of terahertz (THz) radiation source has been developed based on an AlGaAs/GaAs superlattice grown by molecular-beam epitaxy. The gain and optical loss…”
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Matched X-Ray Reflectometry and Diffractometry of Super-Multiperiod Heterostructures Grown by Molecular Beam Epitaxy by Goray, L. I., Pirogov, E. V., Sobolev, M. S., Ilkiv, I. V., Dashkov, A. S., Vainer, Yu. A., Svechnikov, M. V., Yunin, P. A., Chkhalo, N. I., Bouravlev, A. D.

“…Heterostructures with strongly-coupled multiple quantum wells, such as super-multiperiod superlattices with high perfection, may contain hundreds of layers,…”
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Reflectometry of X-ray Whispering Gallery Waves Propagating along Liquid Meniscuses by Goray, L. I., Asadchikov, V. E., Roshchin, B. S., Volkov, Yu. O., Tikhonov, A. M.

“…X-ray reflectometry of whispering galleries (WGs), which propagate along meniscuses of deionized water or silica hydrosols (Ludox ® SM) enriched by Cs + ions,…”
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Terahertz Radiation Sources with an Active Region Based on Super-Multiperiod AlGaAs/GaAs Superlattices by Dashkov, A. S., Gerchikov, L. G., Goray, L. I., Kostromin, N. A., Bouravleuv, A. D.

“…In this article, several designs of the active region of the THz radiation source are considered, taking into account grown super-multiperiod AlGaAs/GaAs…”
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Optimization of Triangular-Profiled Si-Grating Fabrication Technology for EUV and SXR Applications by Mokhov, D. V., Berezovskaya, T. N., Shubina, K. Yu, Pirogov, E. V., Nashchekin, A. V., Sharov, V. A., Goray, L. I.

“…Anisotropic wet etching of vicinal monocrystalline Si(111)4° wafers was used to obtain blazed gratings that are highly efficient in the soft X-ray (SXR) and…”
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Blazed Diffraction Gratings on Si—First Results by Goray, L. I., Berezovskaya, T. N., Mokhov, D. V., Sharov, V. A., Shubina, K. Yu, Pirogov, E. V., Dashkov, A. S.

“…Using direct laser lithography and wet etching of polished vicinal Si(111) wafers, a technology was developed and diffraction gratings 500 grooves/mm with a…”
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Blazed Silicon Gratings for Soft X-Ray and Extreme Ultraviolet Radiation: the Effect of Groove Profile Shape and Random Roughness on the Diffraction Efficiency by Goray, L. I., Sharov, V. A., Mokhov, D. V., Berezovskaya, T. N., Shubina, K. Yu, Pirogov, E. V., Dashkov, A. S., Bouravleuv, A. D.

“…The effect of the groove profile shape and random roughness of the reflecting facet of five silicon diffraction gratings (1°–4° blaze angle, period 0.4, 1.4,…”
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Silicon Echelles for Soft X-Ray and Extreme UV Radiation: Influence of the Camber of the Reflective Facet on the Diffraction Efficiency by Goray, L. I., Berezovskaya, T. N., Mokhov, D. V., Sharov, V. A., Shubina, K. Yu, Pirogov, E. V., Dashkov, A. S.

“…— The influence of the reflective facet parameters, primarily its camber, on the diffraction efficiency of perfect silicon gratings with blaze angles of 3°–4°…”
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Sources of Terahertz Radiation on AlGaAs/GaAs Superlattices by Dashkov, A. S., Gerchikov, L. G., Goray, L. I., Kharin, N. Yu, Sobolev, M. S., Khabibullin, R. A., Bouravleuv, A. D.

“…Several designs are proposed for terahertz emitters based on perfect AlGaAs/GaAs superlattices obtained via molecular-beam epitaxy. Energies of transition,…”
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Blaze of Multilayer Diffraction Gratings in the Soft X-Ray Range: Growth Design Taking into Account the Deformation of Groove Profiles by Goray, L. I., Lubov, M. N.

“…It is shown that changing the angle of deposition of a coating onto a nanostructured substrate with an asymmetric profile (high-frequency blazed grating) has…”
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High-Precision Characterization of Super-Multiperiod AlGaAs/GaAs Superlattices Using X-Ray Reflectometry on a Synchrotron Source by Goray, L. I., Pirogov, E. V., Svechnikov, M. V., Sobolev, M. S., Polyakov, N. K., Gerchikov, L. G., Nikitina, E. V., Dashkov, A. S., Borisov, M. M., Yakunin, S. N., Bouravleuv, A. D.

“…The morphology of supermultiperiod Al 0.3 Ga 0.7 As/GaAs superlattices grown by molecular-beam epitaxy has been determined using X-ray reflectometry (including…”
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A 10,000 groove/mm multilayer coated grating for EUV spectroscopy by Voronov, D L, Anderson, E H, Cambie, R, Cabrini, S, Dhuey, S D, Goray, L I, Gullikson, E M, Salmassi, F, Warwick, T, Yashchuk, V V, Padmore, H A

“…Ultra-high spectral resolution in the EUV and soft x-ray energy ranges requires the use of very high line density gratings with optimal design resulting in use…”
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Fabrication and Soft-X-Ray and EUV Range Testing of Au- and Multilayer Mo/Si-Coated Diffraction Gratings with High-Order Blaze by Goray, L. I., Berezovskaya, T. N., Mokhov, D. V., Sharov, V. A., Shubina, K. Yu, Pirogov, E. V., Dashkov, A. S., Nashchekin, A. V., Zorina, M. V., Barysheva, M. M., Garakhin, S. A., Zuev, S. Yu, Chkhalo, N. I.

“…— Blazed and low-roughness 500 lines/mm diffraction gratings, designed for operation in high orders in the soft X-ray and extreme UV (EUV) radiation ranges and…”
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Super-radiant mode in InAs—monolayer–based Bragg structures by Pozina, G., Kaliteevski, M. A., Nikitina, E. V., Denisov, D. V., Polyakov, N. K., Pirogov, E. V., Goray, L. I., Gubaydullin, A. R., Ivanov, K. A., Kaliteevskaya, N. A., Egorov, A. Yu, Clark, S. J.

“…We report direct experimental evidence of the collective super-radiant mode in Bragg structure containing 60 InAs monolayer-based quantum wells (QWs)…”
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Photoluminescence and Transmission Electron Microscopy Methods for Characterization of Super-Multiperiod A3B5 Quantum Well Structures by Goray, L. I., Pirogov, E. V., Nikitina, E. V., Ubyivovk, E. V., Gerchikov, L. G., Ipatov, A. N., Dashkov, A. S., Sobolev, M. S., Ilkiv, I. V., Bouravlev, A. D.

“…Promising semiconductor devices, such as quantum-cascade lasers and similar to them heterostructures with multiple strongly-coupled quantum wells, may contain…”
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High fidelity blazed grating replication using nanoimprint lithography by Chang, Chih-Hao, Montoya, J. C., Akilian, M., Lapsa, A., Heilmann, R. K., Schattenburg, M. L., Li, M., Flanagan, K. A., Rasmussen, A. P., Seely, J. F., Laming, J. M., Kjornrattanawanich, B., Goray, L. I.

“…We report progress in using nanoimprint lithography to fabricate high fidelity blazed diffraction gratings. Anisotropically etched silicon gratings with 200 nm…”
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Numerical analysis of the efficiency of multilayer-coated gratings using integral method by Goray, L.I.

“…An analysis is made of a rigorous and an approximate approach to the solution of the diffraction problem for a multilayer-coated X-ray grating by the integral…”
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Off-plane grazing-incidence blazed grating with radial grooves as an efficient spectral purity filter for EUV lithography by Goray, L. I.

“…It was found that the high-blaze-angle reflective diffraction grating operating in the off-plane grazing-incidence configuration allows the separation and…”
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Breaking the efficiency limit for high-frequency blazed multilayer soft x-ray gratings: Conical vs classical diffraction by Goray, L. I., Egorov, A. Yu

“…High-frequency multilayer-coated blazed diffraction gratings (HFMBGs) are most promising elements for ultrahigh resolution soft x-ray spectroscopy. As it has…”
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