Spectral-kinetic characteristics of transient absorption in calcium fluoride crystals

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Abstract

Tthe method of absorption spectroscopy with nanosecond resolution is used to study transient absorption in nominally pure crystals of CaF 2 irradiated by a pulse of fast electrons. Optical absorption caused by self-trapped excitons appears in the form of a superposition of bands with half-widths of no more than 0.2 eV in both the electron and hole components. These groups of bands are assigned to absorption of F, H pairs in various configurations. We observe a regular change in the spectral-kinetic characteristics depending on the distance between the components of the pair.

Original languageEnglish
Pages (from-to)1060-1064
Number of pages5
JournalPhysics of the Solid State
Volume39
Issue number7
Publication statusPublished - Jul 1997

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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