Recombination radiation in synthetic and natural diamonds exposed to pulsed UV laser radiation /E. I. Lipatov, D. E. Genin, V. F. Tarasenko

Lipatov, Evgeniy I.
Электронный ресурс
Другой Автор
Genin, Dmitrii E.
Tarasenko, Viktor Fedotovich
Источник
Russian physics journal 2015 Vol. 58, № 7. P. 911-922
Аннотация
Photoluminescence of two diamond samples excited by radiation of a KrCl laser with a spectral maximum at the wavelength λ ~ 222 nm is investigated. Radiative recombination bands of free excitons and electron-hole liquid are simultaneously observed in the integrated difference photoluminescence spectra of a diamond sample synthesized by chemical vapor deposition method during cooling by liquid nitrogen. The N3 electronic vibrational system and the band-A of luminescence are observed in the integrated difference photoluminescence spectra of a natural sample of diamond of IIa type under analogous conditions. Temperature dependences of the spectral intensity of photoluminescence bands of diamond samples in the temperature range T = 80–300 K are determined.
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$a Photoluminescence of two diamond samples excited by radiation of a KrCl laser with a spectral maximum at the wavelength λ ~ 222 nm is investigated. Radiative recombination bands of free excitons and electron-hole liquid are simultaneously observed in the integrated difference photoluminescence spectra of a diamond sample synthesized by chemical vapor deposition method during cooling by liquid nitrogen. The N3 electronic vibrational system and the band-A of luminescence are observed in the integrated difference photoluminescence spectra of a natural sample of diamond of IIa type under analogous conditions. Temperature dependences of the spectral intensity of photoluminescence bands of diamond samples in the temperature range T = 80–300 K are determined.
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$a Genin, Dmitrii E.
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$a Tarasenko, Viktor Fedotovich
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$a Томский государственный университет $b Радиофизический факультет $b Кафедра квантовой электроники и фотоники
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Photoluminescence of two diamond samples excited by radiation of a KrCl laser with a spectral maximum at the wavelength λ ~ 222 nm is investigated. Radiative recombination bands of free excitons and electron-hole liquid are simultaneously observed in the integrated difference photoluminescence spectra of a diamond sample synthesized by chemical vapor deposition method during cooling by liquid nitrogen. The N3 electronic vibrational system and the band-A of luminescence are observed in the integrated difference photoluminescence spectra of a natural sample of diamond of IIa type under analogous conditions. Temperature dependences of the spectral intensity of photoluminescence bands of diamond samples in the temperature range T = 80–300 K are determined.