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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 1 — Jan. 1, 2009
  • pp: 107–112

Preparation and third-order optical nonlinearity of gold nanoparticles incorporated mesoporous Ti O 2 thin films

Fangming Cui, Zile Hua, Qianjun He, Jiangtian Li, Limin Guo, Xiangzhi Cui, Peng Jiang, Chenyang Wei, Weimin Huang, Wenbo Bu, and Jianlin Shi  »View Author Affiliations


JOSA B, Vol. 26, Issue 1, pp. 107-112 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000107


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Abstract

A kind of Au nanoparticle (NP) containing 2D hexagonal mesoporous Ti O 2 thin films (MTTFs) has been successfully synthesized through a deposition–precipitation method. The Au NPs show uniform size distribution and the Au content within the MTTFs is measured to be 7.49 wt. % . The third-order nonlinear optical refractive index of the Au NPs contained MTTFs has been measured by the Z-scan technique at 1064 nm . The absolute value of nonlinear refractive index ( n 2 ) and third-order nonlinear susceptibility ( χ ( 3 ) ) were calculated to be 2.64 × 10 7 and 6.32 × 10 8 esu , respectively. The high nonlinearity of the composite thin films can be attributed to the intraband transition of electrons near the Fermi surface in well-dispersed Au NPs confined in mesoporous channels and the high linear refractive index of the nanocrystalline anatase framework.

© 2008 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(310.6860) Thin films : Thin films, optical properties
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: July 21, 2008
Revised Manuscript: September 15, 2008
Manuscript Accepted: October 8, 2008
Published: December 16, 2008

Citation
Fangming Cui, Zile Hua, Qianjun He, Jiangtian Li, Limin Guo, Xiangzhi Cui, Peng Jiang, Chenyang Wei, Weimin Huang, Wenbo Bu, and Jianlin Shi, "Preparation and third-order optical nonlinearity of gold nanoparticles incorporated mesoporous TiO2 thin films," J. Opt. Soc. Am. B 26, 107-112 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-1-107

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