Wang, FanReece, PeterPaiman, SuriatiGao, QiangJagadish, ChennupatiTan, Hark Hoe2015-12-081530-6984http://hdl.handle.net/1885/31444We report on the observation of nonlinear optical excitation and related photoluminescence from single InP semiconductor nanowires held in suspension using a gradient force optical tweezers. Photoexcitation of free carriers is achieved through absorptionKeywords: Band filling effects; Direct excitation; Free carriers; Gradient force; InP; Multi-photon absorption; Non-linear optical; Nonlinear optical process; Photoluminescence measurements; Semiconductor nanowire; Spectral feature; Three-photon; Absorption; Harmon multi-photon absorption; optical tweezers; photoluminescence; second harmonic generation; semiconductor nanowires201110.1021/nl20202622016-02-24