Enhanced anisotropy of the nonlinear absorption in the individual Au nanoparticles functionalized KNbO_3 sub-microwire
作者： Kai Wang , Zhe Liu , Guozhen Shen , Peixiang Lu
DOI: 10.1364/OE.20.024209
关键词: Optics 、 Quantum dot 、 Nonlinear optics 、 Attenuation coefficient 、 Anisotropy 、 Nanoparticle 、 Photodetector 、 Plasmon 、 Scanning electron microscope 、 Materials science
摘要: High quality and high quantity ultra-long KNbO3 microwires with diameters of 200 nm to a few microns lengths up several milimeters have been synthesized by using simple solvothermal method. The purity, ideal length good transferability make it easy be transferred the quartz substrate for further linear nonlinear optical measurements. Functionalized plasmonic Au nanoparticles, as-prepared sub-microwires exhibited enhanced anisotropy absorption that polarization ratio individual nanoparticles coated sub-microwire (ρ=0.32) is two times more than uncoated one. It demonstrated this microwire an candidate nanolasers, sensitive photodetector photo-thermal nanodevices.
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