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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 22 — Oct. 22, 2012
  • pp: 24209–24217

Enhanced anisotropy of the nonlinear absorption in the individual Au nanoparticles functionalized KNbO3 sub-microwire

Kai Wang, Zhe Liu, Guozhen Shen, and Peixiang Lu  »View Author Affiliations


Optics Express, Vol. 20, Issue 22, pp. 24209-24217 (2012)
http://dx.doi.org/10.1364/OE.20.024209


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Abstract

High quality and high quantity ultra-long KNbO3 microwires with diameters of 200 nm to a few microns and lengths up to several milimeters have been synthesized by using a simple solvothermal method. The high purity, ideal length and good transferability make it easy to be transferred to the quartz substrate for further linear and nonlinear optical measurements. Functionalized by plasmonic Au nanoparticles, the as-prepared KNbO3 sub-microwires exhibited enhanced anisotropy of nonlinear absorption that the polarization ratio of individual Au nanoparticles coated KNbO3 sub-microwire (ρ=0.32) is two times more than the uncoated one. It is demonstrated that this ultra-long KNbO3 microwire is an ideal candidate for nanolasers, polarization sensitive photodetector and photo-thermal nanodevices.

© 2012 OSA

OCIS Codes
(180.5810) Microscopy : Scanning microscopy
(190.4400) Nonlinear optics : Nonlinear optics, materials
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 6, 2012
Revised Manuscript: September 26, 2012
Manuscript Accepted: September 27, 2012
Published: October 8, 2012

Citation
Kai Wang, Zhe Liu, Guozhen Shen, and Peixiang Lu, "Enhanced anisotropy of the nonlinear absorption in the individual Au nanoparticles functionalized KNbO3 sub-microwire," Opt. Express 20, 24209-24217 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-22-24209


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