TY - JOUR ID - 14688 TI -  Influence Of Laser Irradiation On The Optical Properties Of As40Se45Sb15 Thin Films By Thermal Evaporation Technique JO - Advanced Materials Letters JA - AML LA - en SN - 0976-3961 AU - Naik, Ramakanta AD - Y1 - 2015 PY - 2015 VL - 6 IS - 6 SP - 531 EP - 537 KW - CdS KW - MN KW - Phase transition KW - blue shift KW - cole KW - cole plots.  DO - 10.5185/amlett.2015.5753 N2 -  The present paper highlights the optical properties change in thermally evaporated As40Sb15Se45 amorphous film of 800 nm thickness with laser irradiation. The as-prepared and illuminated films were studied by X-ray diffraction, Energy dispersive X-ray analysis. The optical properties were calculated from the transmission spectra obtained from Fourier Transform Infrared Spectroscopy. The band gap is decreased by 0.22 eV due to photo induced effects causing photo darkening. The refractive index is found to be increased due to increase in structural disordering. These optical properties changes are due to the change of homopolar bond densities which can be seen from the core level peak shifting in XPS spectra. The optical constants such as refractive index, band gap of the material plays a major role in the preparation of the device for a particular wavelength. Selecting suitable pairs of chalcogenide glasses with different optical gaps, one can modify the parameters of the light sensitive layers and use them for optical recording.   UR - https://aml.iaamonline.org/article_14688.html L1 - https://aml.iaamonline.org/article_14688_57d6f5607cdefe671ceb21745988c436.pdf ER -