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Shape effect on nonlinear optical properties of CdS nanorod and nanoparticle films

  • Wenjie Gong*
  • , Qing Chang
  • , Yinglin Song
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Heilongjiang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The third order nonlinear optical properties of CdS nanorod film and CdS nanoparticle film were investigated comparatively by using nanosecond laser pulses at 532 nm. It is observed that the values of the nonlinear refractive index n2 (23×10-11 esu), the nonlinear absorption coefficient β (4.4×10-11 m/W) and the effective third order nonlinear susceptibility Χeff(3) (1.7×10 -11 esu) of CdS nanorod film are larger than CdS nanoparticle film (5.2×10-11 esu, 3.9×10-11 m/W, 1.4×10-11 esu). Experimental results show that the shapes of CdS nanomaterials have effect on their third order nonlinear optical properties. The results were analyzed by use of the Maxwell-Garnett Effective Medium theory (MGT).

Original languageEnglish
Title of host publication27th International Congress on High-Speed Photography and Photonics
DOIs
StatePublished - 2007
Event27th International Congress on High-Speed Photography and Photonics - Xi'an, China
Duration: 17 Sep 200622 Sep 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6279 PART 3
ISSN (Print)0277-786X

Conference

Conference27th International Congress on High-Speed Photography and Photonics
Country/TerritoryChina
CityXi'an
Period17/09/0622/09/06

Keywords

  • Film
  • Maxwell-Garnett effective medium theory
  • Optical nonlinearity
  • Shape effect

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