Large second harmonic response in ZnO thin films

Gang Wang, G. T. Kiehne, G. K L Wong, J. B. Ketterson, X. Liu, Robert P. H. Chang

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Abstract

The second-order susceptibilities in the ZnO films have been studied systemically. In very thin films, we observe an enhancement of second-order susceptibilities, which is larger than that of single-crystal ZnO. It was also observed that the second-order susceptibilities for ZnO films depend on the thickness but not on the film growth technique used (reactive sputtering or plasma-enhanced chemical vapor deposition). We suggest a mechanism to explain the reduction in the second-order susceptibilities of the thicker films.

Original languageEnglish
Pages (from-to)401-403
Number of pages3
JournalApplied Physics Letters
Volume80
Issue number3
DOIs
Publication statusPublished - Jan 21 2002

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Wang, G., Kiehne, G. T., Wong, G. K. L., Ketterson, J. B., Liu, X., & Chang, R. P. H. (2002). Large second harmonic response in ZnO thin films. Applied Physics Letters, 80(3), 401-403. https://doi.org/10.1063/1.1435065