Výsledky vyhledávání - "V. M. Kramar"

Internal optical bistability of quasi-two-dimensional semiconductor nanoheterostructures

Autor: Oleksandr V. Derevyanchuk, Natalia K. Kramar, V. M. Kramar

Publikováno v: Thirteenth International Conference on Correlation Optics.

We represent the results of numerical computations of the frequency and temperature domains of possible realization of internal optical bistability in flat quasi-two-dimensional semiconductor nanoheterostructures with a single quantum well (i.e., nan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::502a260224b02303d92d98823d6108cb
https://doi.org/10.1117/12.2305445

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New possibilities of complex 'Thermodyn' application for contactless remote diagnostics in medical practice

Autor: Ye. G. Makhrova, M. Ye. Belov, V. M. Kramar, I. S. Oleksuik, O. G. Shayko-Shaykovskiy

Publikováno v: Thirteenth International Conference on Correlation Optics.

We represent here the theoretical justifications, block scheme and experimental sample of a new automated complex "Thermodyn" for remote contactless diagnostics of inflammatory processes of the surfaces and in subcutaneous areas of human body. Also w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1371d483796090103fbb7444079a4108
https://doi.org/10.1117/12.2304613

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Dependence of optical absorption spectra of the flat double nanoheterostructures Al1-xGaxN/GaN/Al1-xGaxN from their thickness and concentration

Autor: V. M. Kramar, Oleksandr V. Derevyanchuk, Denys V. Kondryuk

Publikováno v: Thirteenth International Conference on Correlation Optics.

The energy of ground state of electron, hole and exiton in quasi-two-dimensional semiconductor nanoheterostructure with quantum well (nanofilm) are calculated by using the dielectric continuum model, approximation of effective masses and Green’s fu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b358c3d22a11e71e4a2c69622eef2b93
https://doi.org/10.1117/12.2305437

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Influence of Effects of Self-Polarization and Exciton-Phonon Interactions on the Exciton Energy in Lead Iodide Nanofilms

Autor: V. M. Kramar, O. V. Pugantseva

Publikováno v: Russian Physics Journal. 57:545-553

UDC 538.915; 538.975 In the approximation of effective masses for electronic and phononic – dielectric continuum – systems, the influence of spatial bounding, self-polarization, and exciton-phonon interactions on the exciton state in a flat doubl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::783bc7a6a098040faa22abc796fe8afc
https://doi.org/10.1007/s11182-014-0273-z

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Magnetooptical bistability of a layered semiconductor in the region of exciton absorption

Autor: C. Yu. Zenkova, V. M. Kramar, N. K. Kramar, A. V. Derevyanchuk

Publikováno v: Optics and Spectroscopy. 104:213-217

The effect of weak external magnetic fields on the conditions for implementing optical bistability in the region of exciton absorption of layered semiconductors has been theoretically investigated. By the example of the 2H polytype of lead diiodide,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87db86cfe8d5512bdc8bc825400298a8
https://doi.org/10.1134/s0030400x08020112

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Optical bistability of a layered semiconductor in the exciton absorption region

Autor: N. K. Kramar, A. V. Derevyanchuk, V. M. Kramar, K. Yu. Zenkova

Publikováno v: Optics and Spectroscopy. 101:731-735

The effect of specific features of the exciton and phonon spectra of layered semiconductors on the conditions of realization of optical bistability in the exciton absorption region has been theoretically investigated by the Green’s function method.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::562afb8c0dc3c609853ed5b4f5ce0a65
https://doi.org/10.1134/s0030400x06110129

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Temperature changes of the exciton transition energy in lead di-iodide nanofilms

Autor: I.V. Fesiv, O. V. Pugantseva, V. M. Kramar, O.O. Kudryavtsev

Adduced in this work are the results of theoretical investigations devoted to the influence of spatial confinement effects, self-polarization of heterojunction planes and exciton-phonon interaction on values of the exciton transition energy in lead d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5efd2c7b87e20bad89d4d3033b50677e
http://dspace.nbuv.gov.ua/handle/123456789/117684

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