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
Optics at Surfaces
Original Manuscript: February 28, 2012
Revised Manuscript: March 23, 2012
Manuscript Accepted: March 23, 2012
Published: May 30, 2012
Xiaolong Zhu, Fengxian Xie, Lei Shi, Xiaohan Liu, N. Asger Mortensen, Sanshui Xiao, Jian Zi, and Wallace Choy, "Broadband enhancement of spontaneous emission in a photonic-plasmonic structure," Opt. Lett. 37, 2037-2039 (2012)