Open AccessRoom-temperature two-dimensional plasmonic crystal semiconductor lasers
Author(s) -
Kuan-Ying Huang,
Yao-Lun Liu,
Chun-Yi Wu,
Bo-Jen Hsiao,
Ce-Fang Shih,
Chia-Ming Tsai,
Gray Lin,
Sheng-Di Lin
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.428774
Subject(s) - materials science , lasing threshold , plasmon , laser linewidth , laser , optoelectronics , optics , semiconductor laser theory , nanolaser , surface plasmon , semiconductor , wavelength , physics
Room-temperature plasmonic-crystal lasers have been demonstrated with a square-lattice gold nano-pillar arrays on top of InGaAs/GaAs quamtum wells on a GaAs substrate. The lasing wavelength is tunable in the range of 865-1001 nm by varying the lattice period. The lasers exhibit an extremely narrow linewidth and small divergence angle so could have great potential for various applications. An unexpected mirror cavity effect has been observed and investigated. The mirror-cavity lasers have a very low threshold and could be developed to realize electrically-driven plasmonic lasers.