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

Wenjie Gong; Qing Chang; Yinglin Song

doi:10.1117/12.725891

29 January 2007 Shape effect on nonlinear optical properties of CdS nanorod and nanoparticle films

Wenjie Gong, Qing Chang, Yinglin Song

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 627975 (2007) https://doi.org/10.1117/12.725891
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

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 ) χ⁽³⁾_eff (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).

Citation Download Citation

Wenjie Gong, Qing Chang, and Yinglin Song "Shape effect on nonlinear optical properties of CdS nanorod and nanoparticle films", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 627975 (29 January 2007); https://doi.org/10.1117/12.725891

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