Second-harmonic generation from CuInSe2 thin films: Influence of the substrate-epilayer lattice mismatch

D. J. Bottomley, A. Mito, P. J. Fons, S. Niki, A. Yamada

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We investigate the second-order nonlinear optical (NLO) properties of tetragonal chalcopyrite-structure CuInSe2 thin films using optical second-harmonic generation at a fundamental wavelength of 790 nm. An approximate doubling of the second-order optical nonlinearity of the CuInSe2 thin films is achieved through changing the substrate from GaAs(001) to In0.29Ga0.71As(001), thereby reducing the lattice mismatch from 2.2% to 0.2%. This observation suggests that minimizing the lattice mismatch is a key requirement for the growth of high-quality NLO active chalcopyrite structure thin films and is in contrast to some other NLO active thin-film systems.

本文言語English
ページ(範囲)1294-1298
ページ数5
ジャーナルIEEE Journal of Quantum Electronics
33
8
DOI
出版ステータスPublished - 1997 8
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 凝縮系物理学
  • 電子工学および電気工学

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