title: Record performance of electrical injection sub-wavelength metallic-cavity semiconductor lasers at room temperature.
abstract: We demonstrate a continuous wave (CW) sub-wavelength metallic-cavity semiconductor laser with electrical injection at room temperature (RT). Our metal-cavity laser with a cavity volume of 0.67λ3 (λ = 1591 nm) shows a linewidth of 0.5 nm at RT, which corresponds to a Q-value of 3182 compared to 235 of the cavity Q, the highest Q under lasing condition for RT CW operation of any sub-wavelength metallic-cavity laser. Such record performance provides convincing evidences of the feasibility of RT CW sub-wavelength metallic-cavity lasers, thus opening a wide range of practical possibilities of novel nanophotonic devices based on metal-semiconductor structures.
authors.affiliation: School of Electrical, Computer, and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA.
authors.forename: K
authors.initials: K
authors.lastname: Ding
authors.forename: M T
authors.initials: MT
authors.lastname: Hill
authors.forename: Z C
authors.initials: ZC
authors.lastname: Liu
authors.forename: L J
authors.initials: LJ
authors.lastname: Yin
authors.forename: P J
authors.initials: PJ
authors.lastname: van Veldhoven
authors.forename: C Z
authors.initials: CZ
authors.lastname: Ning
mesh_terms: D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D008670:Metals / Q000737:chemistry*; D013696:Temperature
chemical_list: D008670:Metals