Second harmonic generation in laser ablated zinc oxide thin films

H. Cao, J. Y. Wu, H. C. Ong, Jiyan Dai, R. P.H. Chang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

189 Citations (Scopus)


We have observed large second-order nonlinear optical response from zinc oxide (ZnO) thin films deposited on sapphire substrates by pulsed laser ablation. By comparing the second harmonic signal generated in a series of ZnO films with different crystallinity and thickness, we conclude that a significant part of the second harmonic signal is generated at the grain boundaries and interfaces.
Original languageEnglish
Pages (from-to)572-574
Number of pages3
JournalApplied Physics Letters
Issue number5
Publication statusPublished - 1 Dec 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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