Second-order susceptibilities of ZnO nanorods from forward second-harmonic scattering
by Geren, K.; Liu, S. W.; Zhou, H. J.; Zhang, Y.; Tian, R.; Xiao, M.
A forward second-harmonic scattering method for determining the second-order susceptibility coefficients of ZnO nanorods on the order of 100 nm in diameter is presented. The long coherence length and strong intensity of the forward second-harmonic signal allow for a simple theoretical model to match the experimental measurements; this results in getting accurate values for the second-order susceptibility tensors. Different signs of d(31) and d(33) are confirmed. The results also show that Kleinman's symmetry is destroyed at a near-resonant second-harmonic wavelength of 405 nm for the ZnO nanorods.
- Journal
- Journal of Applied Physics
- Volume
- 105
- Issue
- 6
- Year
- 2009
- URL
- https://dx.doi.org/10.1063/1.3093903
- ISBN/ISSN
- 1089-7550; 0021-8979
- DOI
- 10.1063/1.3093903