Time-Resolved Optical Spectroscopy of LiNbO3 alter Irradiation with Pulsed Electron Beams

V. Yu Yakovlev, E. V. Kabanova, T. Weber, P. Paufler

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Experimental data on the study of short-lived colour centres and luminescence centres are presented which form in LiNbO3 crystals due to the bombardment by short electron pulses (0.25 eV, 20 ns, 15-160 mJ/cm2) in the temperature range 80-350 K. It is shown that the transitional absorption bands at 2.45 and 3.25 eV are attributable (i) to polarons formed by constitutional Li vacancies and holes, (ii) to Nb4+ Li complexes which form either polarons at NbNb-NLi bonds or bipolarons at NbLi-NbLi bonds. With these centres anisotropic absorption bands at 1.6 eV and weakly polarised bands at 4.0 eV are connected.

Original languageEnglish
Pages (from-to)423-428
Number of pages6
JournalPhysica Status Solidi (A) Applied Research
Volume185
Issue number2
DOIs
Publication statusPublished - Jun 2001

Fingerprint

Polarons
polarons
Absorption spectra
Electron beams
Irradiation
electron beams
absorption spectra
Color centers
irradiation
color centers
spectroscopy
Vacancies
Luminescence
bombardment
luminescence
Crystals
Electrons
pulses
crystals
electrons

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Time-Resolved Optical Spectroscopy of LiNbO3 alter Irradiation with Pulsed Electron Beams. / Yakovlev, V. Yu; Kabanova, E. V.; Weber, T.; Paufler, P.

In: Physica Status Solidi (A) Applied Research, Vol. 185, No. 2, 06.2001, p. 423-428.

Research output: Contribution to journalArticle

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