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”Mirrorless” UV lasers in ZnO polycrystalline films and powder

Published online by Cambridge University Press:  09 August 2011

H. Cao ,
Y. G. Zhao ,
H. C. Ong ,
J. Y. Dai ,
X. Liu ,
E. W. Seelig  and
R. P. H. Chang
H. Cao
Affiliation:
Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston,IL 60208-3112,h-cao@nwu.edu
Y. G. Zhao
Affiliation:
Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston,IL 60208-3112,h-cao@nwu.edu
H. C. Ong
Affiliation:
Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston,IL 60208-3112,h-cao@nwu.edu
J. Y. Dai
Affiliation:
Department of Materials Science and Engineering, Materials Research Center, Northwestern University, Evanston, IL 60208-3116
X. Liu
Affiliation:
Department of Materials Science and Engineering, Materials Research Center, Northwestern University, Evanston, IL 60208-3116
E. W. Seelig
Affiliation:
Department of Materials Science and Engineering, Materials Research Center, Northwestern University, Evanston, IL 60208-3116
R. P. H. Chang
Affiliation:
Department of Materials Science and Engineering, Materials Research Center, Northwestern University, Evanston, IL 60208-3116
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Abstract

We report the first observation of ultraviolet lasing in ZnO powder and ZnO polycrystalline films grown on amorphous fused silica substrates. In the absence of any fabricated mirrors, laser action occurs in the closed loops formed by multiple optical scattering of light.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 536: Symposium F – Microcrystalline & Nanocrystalline Semiconductors - 1998 , 1998 , 477
Copyright
Copyright © Materials Research Society 1999

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References

1. Zhang, Z.-Q., Phys. Rev. B 52, 7960 (1995).Google Scholar
2. Wiersma, D. S. and Lagendijk, A., Phys. Rev. E 54, 4256 (1996).Google Scholar