Article

Pramana

, Volume 65, Issue 5, pp 871-879

Thin films of metal-organic compounds and metal nanoparticle-embedded polymers for nonlinear optical applications

  • S. Philip AnthonyAffiliated withSchool of Chemistry, University of Hyderabad
  • , Shatabdi PorelAffiliated withSchool of Chemistry, University of Hyderabad
  • , D. Narayana RaoAffiliated withSchool of Physics, University of Hyderabad
  • , T. P. RadhakrishnanAffiliated withSchool of Chemistry, University of Hyderabad

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Abstract

Thin films based on two very different metal-organic systems are developed and some nonlinear optical applications are explored. A family of zinc complexes which form perfectly polar assemblies in their crystalline state are found to organize as uniaxially oriented crystallites in vapor deposited thin films on glass substrate. Optical second harmonic generation from these films is investigated. A simple protocol is developed for thein-situ fabrication of highly monodisperse silver nanoparticles in a polymer film matrix. The methodology can be used to produce free-standing films. Optical limiting capability of the nanoparticle-embedded polymer film is demonstrated

Keywords

Polar crystal uniaxial orientational order thin film second harmonic generation silver nanoparticle polyvinyl alcohol free-standing film optical limiter

PACS Nos

42.65.Ky 42.70.Jk 42.70.Nq 78.66.Qn 78.66.Sq