- 作者：Navjeet Sharmaa ; Surbhi Sharmab ; c ; physurbhi@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Amit Sarind ; Rajesh Kumare
- 关键词：Chalcogenide glasses ; Optical constants
- 刊名：Optical Materials
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：51
- 期：Complete
- 页码：56-61
- 全文大小：1057 K
- •
The optical characterization of thin films of Ge20Sn10Se70−xSbx (x = 0, 3, 6, 9, 12, 15 at.%) amorphous C.G. system has been carried out by using transmission spectra.
- •
Refractive index is found to be increasing with increase in Sb concentration. This can be attributed to the increase in polarisability of the atoms.
- •
The decrease in extinction coefficient with the increase in wavelength implies that the absorption losses decreases and the specimen is transparent for higher wavelengths.
- •
Increase in optical conductivity with energy is observed which is due to increase in refractive index and absorption coefficient.
- •
Non-linear susceptibility and non-linear refractive index are found to be increasing with the increasing concentration of Sb which implies that the specimen is diffraction free and thus have practical applications in photonic technology.