Large second harmonic response in ZnO thin films
- 15 January 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 80 (3), 401-403
- https://doi.org/10.1063/1.1435065
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.Keywords
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