Second order optical effects in Au nanoparticle-deposited ZnO nanocrystallite films

Photoinduced second harmonic generation (SHG) in Au nanoparticle-deposited ZnO nanocrystallite (NC) films was explored by applying bicolor coherent treatment of a Nd-YAG laser with wavelength 1.06 µm and its SHG. We have established that coexistence of the ZnO and Au nanoparticles gives a substantia...

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Bibliographic Details
Published in:Nanotechnology 2008-05, Vol.19 (18), p.185709-185709
Main Authors: Ozga, K, Kawaharamura, T, Ali Umar, A, Oyama, M, Nouneh, K, Slezak, A, Fujita, S, Piasecki, M, Reshak, A H, Kityk, I V
Format: Article
Language:English
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Summary:Photoinduced second harmonic generation (SHG) in Au nanoparticle-deposited ZnO nanocrystallite (NC) films was explored by applying bicolor coherent treatment of a Nd-YAG laser with wavelength 1.06 µm and its SHG. We have established that coexistence of the ZnO and Au nanoparticles gives a substantially larger SHG output with respect to pure ZnO NC deposited on the glass substrate. It was established that the value of the second order susceptibility is about 23 pm V(-1). Better nonlinear optical susceptibilities were obtained during phototreatment at temperatures near 30-35 °C for the Au doped samples. The samples without gold NCs are temperature independent. Generally an increasing temperature leads to a decrease of the optical SHG.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/19/18/185709