Large second harmonic response in ZnO thin films

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

doi:10.1063/1.1435065

Large second harmonic response in ZnO thin films

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

Northwestern University

Research output: Contribution to journal › Review article › peer-review

85 Citations (Scopus)

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 language	English
Pages (from-to)	401-403
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	3
DOIs	https://doi.org/10.1063/1.1435065
Publication status	Published - Jan 21 2002

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Liu, X.

AU - Chang, R. P.H.

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N2 - 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.

AB - 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.

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Large second harmonic response in ZnO thin films

Abstract

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