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Applied Physics Letters / Volume 97 / Issue 9 / DEVICE PHYSICS

Appl. Phys. Lett. 97, 093503 (2010); http://dx.doi.org/10.1063/1.3486162 (3 pages)

Nonlinear optical performance of periodic structures made from composites of polymers and Co3O4 nanoparticles

X. Zhu, J. Wang, P. Lau, D. Nguyen, R. A. Norwood, and N. Peyghambarian

College of Optical Sciences, The University of Arizona, 1630 E. University Boulevard, Tucson, Arizona 85721, USA

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(Received 15 May 2010; accepted 15 August 2010; published online 2 September 2010)

The nonlinear optical performance of specially designed periodic structures made from composites of optical polymers and Co3O4 nanoparticles is investigated. The refractive indices of the alternating layers are designed to be close and no photonic band gap (PBG) is formed at low power density. Under high power illumination, the index difference becomes large because of the high optical nonlinearities of the Co3O4 nanoparticles. Consequently, enhanced nonlinear optical performance is obtained with the formation and the strengthening of the PBG. Nonlinear reflection and nonlinear transmission as well as reduced nonlinear threshold are observed in the PBG structures.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

cobalt compounds, light reflection, light transmission, nanocomposites, nanoparticles, nonlinear optics, optical polymers, periodic structures, photonic band gap, refractive index

PACS

  • 78.67.Sc

    Nanoaggregates; nanocomposites

  • 78.20.Ci

    Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

  • 42.70.Qs

    Photonic bandgap materials

  • 42.70.Jk

    Polymers and organics

  • 42.65.-k

    Nonlinear optics

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3486162

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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