Investigation of Structural Features of As2S3-Se Multilayer Nanostructure by Raman Spectroscopy

Abashkin Vladimir; Akimova Elena; Meshalkin Alexei; Prisakar Alexandr; Tridukh Ghennadi; Vlcek Miroslav; Loghina (Beţ) Liudmila; Voynarovych Ivan

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ABASHKIN, Vladimir, AKIMOVA, Elena, MESHALKIN, Alexei, PRISAKAR, Alexandr, TRIDUKH, Ghennadi, VLCEK, Miroslav, LOGHINA (BEŢ), Liudmila, VOYNAROVYCH, Ivan. Investigation of Structural Features of As2S3-Se Multilayer Nanostructure by Raman Spectroscopy . In: Электронная обработка материалов, 2016, nr. 4(52), pp. 67-73. ISSN 0013-5739.

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Электронная обработка материалов

Numărul 4(52) / 2016 / ISSN 0013-5739 /ISSNe 2345-1718

Investigation of Structural Features of As2S3-Se Multilayer Nanostructure by Raman Spectroscopy

CZU: 535.4+538.958+538.975

Pag. 67-73

Abashkin Vladimir¹, Akimova Elena¹, Meshalkin Alexei¹, Prisakar Alexandr¹, Tridukh Ghennadi¹, Vlcek Miroslav², Loghina (Beţ) Liudmila², Voynarovych Ivan²

¹ Institute of Applied Physics, Academy of Sciences of Moldova,
² University of Pardubice

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The focus of this research is on the investigation of structural changes in the As2S3-Se multilayer nanostructure and on the examination of a relative contribution of As2S3 and Se layers to nanostructuring by measuring the Raman spectra. The formation of the As2S3-Se nanostructure by an alternate As2S3 and Se layers deposition was applied. The diffraction efficiency dependence on the exposure of a CW DPSS laser were monitored in a transmission mode of the1st order diffracted beam intensity and measured in real-time at the normal incidence of the laser diode beam (λ = 650 nm). From the comparison of these dependences for a set of samples we have chosen the multilayer nanostructure As2S3-Se with optimal recording properties meaning maximum both the value and the rate of diffraction efficiency. Our results are found to be of practical interest as they allow a significant improvement of the diffraction efficiency of the directly recorded relief gratings.

Cuvinte-cheie
chalcogenide glasses, nanostructures, Raman spectroscopy, surface grating

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