Abstract

Semiconductor-based plasmonic crystal lasers (PCLs) have narrow linewidth, small divergence angle, excellent thermal stability, and great potential for ultra-high-speed communications. The underlying mechanism and lasing modes for their operation is unfolded in this work. We find that the waveguide mode coupling with the surface plasmonic mode plays an essential role in the semiconductor-based PCLs. The simulation and experimental data reveal that the cooperation of the dielectric layers and the metallic nano-pillar array gives the needed resonant mode of high-quality factor. The mode coupling strength has to be properly designed to make these intriguing devices working.

Room-temperature two-dimensional plasmonic crystal semiconductor lasers

Kuan-Ying Huang, Yao-Lun Liu, Chu-Chun Wu, Bo-Jen Hsiao, Ce-Fang Shih, Chia-Ming Tsai, Gray Lin, and Sheng-Di Lin
Opt. Express 29(13) 19384-19391 (2021)

Efficient coupling between dielectric waveguide modes and exterior plasmon whispering gallery modes

Chen-Guang Xu, Xiao Xiong, Chang-Ling Zou, Xi-Feng Ren, and Guang-Can Guo
Opt. Express 21(25) 31253-31262 (2013)

Refractive index dependence of the coupling characteristics between long-range surface-plasmon-polariton and dielectric waveguide modes

Fang Liu, Ruiyuan Wan, Yidong Huang, and Jiangde Peng
Opt. Lett. 34(17) 2697-2699 (2009)

Vertical coupling between gap plasmon waveguides

Galen B. Hoffman and Ronald M. Reano
Opt. Express 16(17) 12677-12687 (2008)

Strong coupling between a plasmonic waveguide and graphene surface plasmons

Maha Ben Rhouma, Oueslati Meherzi, and Brahim Guizal
J. Opt. Soc. Am. B 34(4) 884-890 (2017)