Random lasing from dye-gold nanoparticles in polymer films: Enhanced gain at the surface-plasmon-resonance wavelength
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- O. Popov
- The Hebrew University of Jerusalem The Racah Institute of Physics, , Jerusalem 91904, Israel
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- A. Zilbershtein
- The Hebrew University of Jerusalem The Racah Institute of Physics, , Jerusalem 91904, Israel
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- D. Davidov
- The Hebrew University of Jerusalem The Racah Institute of Physics, , Jerusalem 91904, Israel
書誌事項
- 公開日
- 2006-11-06
- DOI
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- 10.1063/1.2364857
- 公開者
- AIP Publishing
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説明
<jats:p>The authors report on gold nanoparticle enhancement of the gain in dyes/nanoparticles/polymer film for random lasers. Importantly, they demonstrate a lower threshold for lasing and a stronger output intensity, which depend on the nanoparticle (NP) size. By calculating the “NP scattering resonance” using Mie theory and the measured surface-plasmon resonance, we can qualitatively explain the results, suggesting that the random lasing properties are dominated by an enhanced photon scattering mechanism induced by the surface plasmons.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 89 (19), 191116-, 2006-11-06
AIP Publishing