descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 May 2006 English Publisher:AIP PublishingJournal:Applied Physics Letters, volume 88 (issn: 0003-6951, eissn: 1077-3118,

Authors: Prasanth, R.; van Vugt, L.K.; Vanmaekelbergh, D.A.M.; Gerritsen, H.C.;

doi: 10.1063/1.2200230

Resonance enhancement of optical second harmonic generation in a ZnO nanowire

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Abstract

Two-photon absorption measurement has been carried out in a single 80nm×10μm ZnO nanowire using femtosecond laser pulses in the wavelength range of 700–800nm. In addition to the deep-level green emission around 530nm due to surface defects and the near band-edge ultraviolet emission around 360nm due to the exciton, a second harmonic peak has been observed. The strength of the frequency-doubled component is found to enhance while the two-photon absorption wavelength is tuned towards the exciton wavelength of the nanowire. This behavior can be ascribed to the resonant exciton absorption in ZnO nanowires.

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Utrecht University
Netherlands

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