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Some optical and recording properties of composite material As2S3-PVP

A. ANDRIESH1,* , A. MESHALKIN1, S. BUZURNIUC1, V. VERLAN1

Affiliation

  1. Center of Optoelectronics of the Institute of Applied Physics, Academy of Sciences of Moldova 1 Academiei str., MD-2028, Chisinau, Moldova Republic

Abstract

Thin layers of composite and nanocomposite material based on the amorphous arsenic sulfide and polymer polyvinylpyrrolidone (PVP), received by chemical dissolution As2S3 and composite separately, mixing and deposition on various substrates (silica glass, polyethylene terephthalate and monocrystalline silicon, etc.) have been investigated. Research of morphology of layers has revealed, that composites represent a polymeric material as matrix in which As2S3 spheroids with sizes of 1 μm and less distributed in regular intervals and depend on conditions of technology of obtaining. Optical transmission, refractive index and the diffraction efficiency of holographic record on thin layers of composites were measured. Composite retains many properties of the initial components from which they are prepared. The decreasing of the As2S3 component in the composite leads to absorption edge shift to higher energies and spheroid dimensions decreasing. Optical properties of the composites are changed due to ultraviolet (UV) light irradiation. This allows to utilize these structures for optical recording of information in particular holographic recording of diffraction gratings. The investigated new composites are perspective for different photonic devices as well as for recording media with high resolution..

Keywords

Composite and nanocomposite materials, As2S3 – PVP, Chalcogenide glasses, Polymer, Registration media.

Submitted at: July 3, 2007
Accepted at: Oct. 15, 2007

Citation

A. ANDRIESH, A. MESHALKIN, S. BUZURNIUC, V. VERLAN, Some optical and recording properties of composite material As2S3-PVP, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 10, pp. 3002-3006 (2007)