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Broadband enhancement of spontaneous emission in a photonic-plasmonic structure

Xiaolong Zhu, Fengxian Xie, Lei Shi, Xiaohan Liu, N. Asger Mortensen, Sanshui Xiao, Jian Zi, and Wallace Choy

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Abstract

We demonstrate that a broadband enhancement of spontaneous emission can be achieved within a photonic-plasmonic structure. The structure can strongly modify the spontaneous emission by exciting plasmonic modes. Because of the excited plasmonic modes, an enhancement up to 30 times is observed, leading to a 4 times broader emission spectrum. The reflectance measurement and the finite-difference time-domain simulation are carried out to support these results.

©2012 Optical Society of America

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