Transient optical absorption of excited F-centres in BeO

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Аннотация

Time-resolved spectra, decay kinetics and polarization of the transient optical absorption induced by irradiation of additively colored BeO crystals with electron pulses have been studied. It has been established that the two bands at 3.8 and 4.3 eV of the transient optical absorption are due to the transitions between triplet and singlet excited states of F-centres in BeO. The polarization of excited F-centres absorption is discussed on the basis of analysis of the splitting of singlet and triplet states in crystalline field of the C_3v symmetry.

Язык оригинала	Английский
Страницы (с-по)	655-658
Число страниц	4
Журнал	Radiation Effects and Defects in Solids
Том	157
Номер выпуска	6-12
DOI	https://doi.org/10.1080/10420150215776
Состояние	Опубликовано - 2002

ASJC Scopus subject areas

Nuclear Energy and Engineering
Radiation
Condensed Matter Physics
Electronic, Optical and Magnetic Materials

Доступ к документу

10.1080/10420150215776

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abstract = "Time-resolved spectra, decay kinetics and polarization of the transient optical absorption induced by irradiation of additively colored BeO crystals with electron pulses have been studied. It has been established that the two bands at 3.8 and 4.3 eV of the transient optical absorption are due to the transitions between triplet and singlet excited states of F-centres in BeO. The polarization of excited F-centres absorption is discussed on the basis of analysis of the splitting of singlet and triplet states in crystalline field of the C3v symmetry.",

keywords = "BeO, F-centres, Optical absorption",

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AU - Yakovlev, V. Y U

PY - 2002

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AB - Time-resolved spectra, decay kinetics and polarization of the transient optical absorption induced by irradiation of additively colored BeO crystals with electron pulses have been studied. It has been established that the two bands at 3.8 and 4.3 eV of the transient optical absorption are due to the transitions between triplet and singlet excited states of F-centres in BeO. The polarization of excited F-centres absorption is discussed on the basis of analysis of the splitting of singlet and triplet states in crystalline field of the C3v symmetry.

KW - BeO

KW - F-centres

KW - Optical absorption

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