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SM ISO690:2012 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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Telecommunications, Electronics and Informatics Ed. 5, 2015 |
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Conferința "Telecommunications, Electronics and Informatics" 5, Chișinău, Moldova, 20-23 mai 2015 | ||||||
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Pag. 225-230 | ||||||
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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. |
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Cuvinte-cheie Cadmium thiogallate, Birefringence, Interference spectra, Isotropic wavelength, Ordinary and extraordinary waves |
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