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Evaluation of the t...
Evaluation of the third-order optical nonlinearity of Au:SiO2 nanocomposites in the off-resonant spectral region
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Lee, Hwang Woon (författare)
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Lee, Kwangjin (författare)
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Cho, Sunghun (författare)
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Anthony, John Kiran (författare)
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Lee, Soonil (författare)
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Lim, Hanjo (författare)
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Kim, Kihong (författare)
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- Pasiskevicius, Valdas (författare)
- KTH,Laserfysik
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Rotermund, Fabian (författare)
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- Engelska.
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Ingår i: Optics Communications. - : Elsevier BV. - 0030-4018 .- 1873-0310. ; 286, s. 347-352
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The third-order nonlinear optical susceptibility (chi((3))) of Au:SiO2 nanocomposite films with different Au particle sizes was measured to be on the order of 10(-10) esu to 10(-9) esu in the off-resonant spectral region, and the particle size-dependent behavior of chi((3)) was observed. The results were found to deviate substantially from those of the conventional Maxwell-Garnet theory. By adapting the modified invariant imbedding method, which takes into account the effect of interparticle interactions on the nonlinear response, we successfully explain the enhanced third-order nonlinear susceptibility of metal-dielectric nanocomposites at off-resonant wavelengths.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Nanocomposite
- Au:SiO2
- Nonlinear refraction
- Nonlinear absorption
- Invariant imbedding method
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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