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Optics Letters

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  • Vol. 21, Iss. 4 — Feb. 15, 1996
  • pp: 254–256

Second-harmonic generation from chalcopyrite-structure semiconductor thin films

D. J. Bottomley, A. Mito, S. Niki, and A. Yamada  »View Author Affiliations


Optics Letters, Vol. 21, Issue 4, pp. 254-256 (1996)
http://dx.doi.org/10.1364/OL.21.000254


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Abstract

We propose that thin films of tetragonal chalcopyrite-structure semiconductor media are promising nonlinear-optical (NLO) materials for the following reasons: Phase matching is possible with them in principle, they can be utilized in a waveguide geometry, and they are compatible with III–V substrates. We investigate the second-order NLO properties of chalcopyrite-structure CuInSe2 and CuGaSe2 thin films grown on GaAs(001), using optical second-harmonic (SH) generation at a fundamental wavelength of 790 nm. The SH intensities produced by approximately stoichiometric CuInSe2 and CuGaSe2 thin films are similar to that of GaAs. The second-order optical nonlinearities are strongly curtailed in nonstoichiometric thin films.

© 1996 Optical Society of America

History
Original Manuscript: August 22, 1995
Published: February 15, 1996

Citation
D. J. Bottomley, A. Mito, S. Niki, and A. Yamada, "Second-harmonic generation from chalcopyrite-structure semiconductor thin films," Opt. Lett. 21, 254-256 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-4-254

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