On photoacoustic spectra of X-irradiated NaCl:Y crystals

Gopal Reddy, Ch. ; Narasimha Reddy, K. ; Mutha Reddy, M. ; Rama Reddy, K. ; Mohan Rao, Ch. (1991) On photoacoustic spectra of X-irradiated NaCl:Y crystals Physics Letters A, 156 (5). pp. 253-255. ISSN 0375-9601

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037596...

Related URL: http://dx.doi.org/10.1016/0375-9601(91)90150-7


A correlation between the photoacoustic (PA) and optical absorption (OA) spectra of X-irradiated NaCl:Y crystals is reported. The F-band spectra observed through PA spectroscopy is found to be sharper than that of OA spectroscopy. This sharpening is attributed to the reduced probability of nonradiative decay processess of F-Centres over the radiative processes. Two bands observed in the UV region of both the spectra are attributed to the Y+ impurity transitions in the host matrix.

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