Metastable optical absorption and luminescence in MgO-doped LiNbO3 crystals

V. F. Pichugin, V. Yu Yakovlev, M. S. Dmitriev, Ill Won Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of present work is the investigation of the Mg impurity influence on efficiency of colour centres formation in MgO-doped LiNbO3 crystals by techniques of pulsed optical spectroscopy with nanosecond time-resolution. Obtained results show that not only cation vacancies and "antisite" defects determine the formation of colour centres in investigated crystals. Increase of MgO concentration diminishes number of cation vacancies, which stabilize holes. Nevertheless increase of MgO concentration to threshold (about 6% of MgO) leads to increase of concentration of holes color centers. Formation of color centers in irradiated LiNbO3 crystals takes place not only as a result of capture of charge carriers on deep traps, but also as a result of formation of structure defects by means of decay of electron excitations in proper crystalline lattice.

Original languageEnglish
Title of host publication5th Korea-Russia International Symposium on Science and Technology - Proceedings: KORUS 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages322-326
Number of pages5
Volume1
ISBN (Print)0780370082, 9780780370081
DOIs
Publication statusPublished - 2001
Event5th Korea-Russia International Symposium on Science and Technology, KORUS 2001 - Tomsk, Russian Federation
Duration: 26 Jun 20013 Jul 2001

Other

Other5th Korea-Russia International Symposium on Science and Technology, KORUS 2001
CountryRussian Federation
CityTomsk
Period26.6.013.7.01

Keywords

  • crystal
  • defects
  • electron
  • energetic levels
  • irradiation
  • luminescence
  • optical absorption
  • spectrum

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Computer Networks and Communications
  • Biotechnology
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films

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