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Resonance enhancement of optical second harmonic generation in a ZnO nanowire

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 May 2006 Netherlands 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.

Country

Netherlands

Related Organizations

Utrecht University
Netherlands

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