We report on the formation of second-harmonic whispering-gallery modes (SH-WGMs) on the tapered ZnO nanotetrapod legs. The SH-WGMs have strong dependence on the polarization of the fundamental infrared excitation beam relative to the crystal axis.
© 2009 The Optical Society
(140.0140) Lasers and laser optics : Lasers and laser optics
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(140.3945) Lasers and laser optics : Microcavities
Y. Zhang, H. Zhou, S. W. Liu, Z. R. Tian, and M. Xiao, "Observation of Second-Harmonic Whispering-Gallery Modes in ZnO Nanotetrapod," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CThK1.
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