Absorption cross sections and number densities of electron and hole polarons in congruently melting LiNbO3

C. Merschjann, B. Schoke, D. Conradi, M. Imlau, G. Corradi, K. Polgr

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The number densities and absorption cross sections of both optically generated and reduction-induced small electron and hole polarons in LiNbO 3 are determined by means of time-resolved pump-multiprobe spectroscopy. The data are obtained for free (NbNb4+) and bound (NbLi4+) electron polarons, bound Nb Li4+:NbNb4+ electron bipolarons, and bound O- hole polarons. The peak absorption cross sections are in the range of σpol≈(4-14) × 10-22m 2, comparable to that for Fe2+. In all cases the ratio of occupied to unoccupied polaronic sites is less than 10-2.

Original languageEnglish
Article number015906
JournalJournal of Physics Condensed Matter
Volume21
Issue number1
DOIs
Publication statusPublished - 2009

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Polarons
polarons
absorption cross sections
Melting
melting
Electrons
electrons
Pumps
Spectroscopy
pumps
spectroscopy
lithium niobate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Absorption cross sections and number densities of electron and hole polarons in congruently melting LiNbO3. / Merschjann, C.; Schoke, B.; Conradi, D.; Imlau, M.; Corradi, G.; Polgr, K.

In: Journal of Physics Condensed Matter, Vol. 21, No. 1, 015906, 2009.

Research output: Contribution to journalArticle

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AU - Corradi, G.

AU - Polgr, K.

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