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Особенности Пропускания Ультракоротких Импульсов Лазерного Излучения Тонкой Пленкой Полупроводника в Условиях Возбуждения Экситонов и Биэкситонов

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dc.contributor.author COROVAI, A. V.
dc.date.accessioned 2020-11-29T18:39:23Z
dc.date.available 2020-11-29T18:39:23Z
dc.date.issued 2015
dc.identifier.citation COROVAI, A. V. Особенности Пропускания Ультракоротких Импульсов Лазерного Излучения Тонкой Пленкой Полупроводника в Условиях Возбуждения Экситонов и Биэкситонов. In: Telecomunicaţii, Electronică şi Informatică: proc. of the 5th intern. conf., May 20-23, 2015. Chişinău, 2015, pp. 260-264. ISBN 978-9975-45-377-6. en_US
dc.identifier.isbn 978-9975-45-377-6
dc.identifier.uri http://repository.utm.md/handle/5014/11849
dc.description.abstract The theory of nonstationary transmission of two supershort pulses of laser radiation by thin semiconductor film is developed. One of the incident pulses is in the resonance with two–photon transition from ground state of the crystal to the biexciton state, whereas the other pulse mixes coherently the exciton and biexciton states, resulting in a strong renormalization of energetic spectrum of the crystal. We have obtained the system of nonlinear equations describing the time evolution of the exciton and biexciton amplitudes and the fields of three transmitted through film pulses. We investigated the influence of amplitudes and widths of incident pulses and the time delay between them on the film transmittivity. We predicted the effect of a strong delay in transmitted by the film pulses relative to the incident one, which is in the resonance with the frequency of exciton–biexciton transition. We proved also the possibility of generation of precursor, which is the pulse transmitted by film earlier than the peak of incident pulse arrives the film. en_US
dc.language.iso ru en_US
dc.publisher Technical University of Moldova en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject excitons en_US
dc.subject biexcitons en_US
dc.subject semiconductors en_US
dc.subject thin films en_US
dc.subject laser radiation en_US
dc.title Особенности Пропускания Ультракоротких Импульсов Лазерного Излучения Тонкой Пленкой Полупроводника в Условиях Возбуждения Экситонов и Биэкситонов en_US
dc.type Article en_US


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