Nano Archive

Nonlinear light transmission through oxide-protected Au and Ag nanoparticles: an investigation in the nanosecond domain

Anija, M and Thomas, Jinto and Singh, Navinder and Sreekumaran Nair, A and Renjis, T. Tom and Pradeep , T and Reji , Philip (2003) Nonlinear light transmission through oxide-protected Au and Ag nanoparticles: an investigation in the nanosecond domain. Chemical Physics Letters, 380 (1-2). pp. 223-229.

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Abstract

Stable Au and Ag nanoparticles protected with TiO2, ZrO2, and SiO2 shells show saturable absorption when excited with moderately energetic nanosecond pulses at 532 nm, but exhibit strong optical limiting at higher intensities. The behavior is explained in terms of the induced optical nonlinearity and nonlinear light scattering. The inherent stability of the core–shell structure renders a high laser damage threshold to these materials, making them promising candidates for high energy optical limiting.

Item Type:Article
Subjects:Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4341
Deposited By:JNCASR
Deposited On:03 Apr 2009 05:26
Last Modified:03 Apr 2009 12:38

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