Transient optical absorption of excited F-centres in BeO

S. V. Gorbunov, V. Y U Yakovlev

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish
Pages (from-to)655-658
Number of pages4
JournalRadiation Effects and Defects in Solids
Volume157
Issue number6-12
DOIs
Publication statusPublished - 2002

Fingerprint

color centers
Light absorption
optical absorption
Polarization
Crystal symmetry
polarization
Electron transitions
Excited states
atomic energy levels
Irradiation
Crystalline materials
Crystals
Kinetics
irradiation
Electrons
kinetics
symmetry
decay
pulses
excitation

Keywords

  • BeO
  • F-centres
  • Optical absorption

ASJC Scopus subject areas

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

Cite this

Transient optical absorption of excited F-centres in BeO. / Gorbunov, S. V.; Yakovlev, V. Y U.

In: Radiation Effects and Defects in Solids, Vol. 157, No. 6-12, 2002, p. 655-658.

Research output: Contribution to journalArticle

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