Author:
Tolkach N M,Vishnyakov N V,Yakubov A O,Sudakova A U,Trofimov E S,Sherchenkov A A
Abstract
Abstract
The evaluation of the crystallinity degree for the local regions in Ge2Sb2Te5 (GST) thin films after phase state transformation by laser pulses at 405 nm wavelength was analyzed using the Raman spectroscopy. The modes of laser radiation for controlling the reflectivity and transmissivity at 1550 nm telecommunication wavelength of the local regions in the GST film were established. The results obtained make it possible to implement the method of the completely optical control of the multilevel modulation of the optical signals for the integrated optics devices.
Subject
General Physics and Astronomy