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|Interferenţă. Difracţie. Difuzare prin difracţie (8)|
|Fizica materiei condensate. Fizica solidului (225)|
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ABASHKIN, Vladimir; ACHIMOVA, Elena; MESHALKIN, Alexei; PRISACAR, Alexandru; TRIDUH, Ghennadi; VLCEK, Miroslav; LOGHINA (BEŢ), Liudmila; VOYNAROVICH, I.. 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.
|Электронная обработка материалов|
|Numărul 4(52) / 2016 / ISSN 0013-5739 /ISSNe 2345-1718|
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.
chalcogenide glasses, nanostructures, Raman spectroscopy,