Temperature dependence of the absorption and refraction of Mg-doped congruent and stoichiometric LiNbO 3 in the THz range

L. Pálfalvi, J. Hebling, J. Kuhl, Á Ṕter, K. Polgár

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191 Citations (Scopus)

Abstract

The absorption coefficient and the index of refraction of undoped and Mg-doped stoichiometric and congruent LiNbO3 crystals were determined for polarization parallel to the z axis in the far-infrared (FIR) 30-180- cm-1 frequency range for different Mg-doping levels and temperatures down to 10 K. For stoichiometric LiNbO3, smaller absorption and index of refraction were found, than for congruent samples. At a Mg content near the photorefractive threshold, the FIR absorption coefficient has the lowest value in the stoichiometric crystals, which are most suitable for efficient pulse generation in the terahertz range.

Original languageEnglish
Article number123505
JournalJournal of Applied Physics
Volume97
Issue number12
DOIs
Publication statusPublished - Jul 18 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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