Birefringence in CdGa2S4 crystals
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2019-03-14 15:51
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TIRON, Andrew, PARVAN, Vladimir, SYRBU, Nicolae, ZALAMAI, Victor. Birefringence in CdGa2S4 crystals. In: Telecommunications, Electronics and Informatics, Ed. 5, 20-23 mai 2015, Chișinău. Chișinău, Republica Moldova: 2015, Ed. 5, pp. 225-230. ISBN 978-9975-45-377-6.
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Dublin Core
Telecommunications, Electronics and Informatics
Ed. 5, 2015
Conferința "Telecommunications, Electronics and Informatics"
5, Chișinău, Moldova, 20-23 mai 2015

Birefringence in CdGa2S4 crystals


Pag. 225-230

Tiron Andrew1, Parvan Vladimir1, Syrbu Nicolae1, Zalamai Victor2
 
1 Technical University of Moldova,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
 
Disponibil în IBN: 21 mai 2018


Rezumat

In СdGа2S4 crystals Fabry-Perot and birefringence interference spectra were investigated. Spectral dependences of refraction indexes for ordinary and extraordinary light waves are defined. The spectral dependence Δn = ne - no from the short and long-wavelength parts of isotropic wavelength is determined. It is established that at λ > λ0 Δn is positive and at λ < λ0 Δn is negative. Wavelength λ0 = 485.7 nm shifts with decreasing temperature to short-wavelengths. The band in reflection spectra observed at the isotropic wavelength has a small halfwidth (∽3 5 Å). Another isotropic wavelength was found in the shortwavelength region (433 nm) for crystals obtained by iodine transport method.

Cuvinte-cheie
Cadmium thiogallate, Birefringence, Interference spectra, Isotropic wavelength,

Ordinary and extraordinary waves