Advanced micropillar cavities: room-temperature operation of microlasers

TL;DR

This paper demonstrates room-temperature continuous-wave microlasers using high-quality micropillar cavities with stable single-mode lasing at 960 nm, low threshold, and high quality-factor, advancing practical applications of microlasers.

Contribution

It reports the first stable room-temperature continuous-wave lasing in micropillar cavities with semiconductor and hybrid mirrors, achieving high quality-factor and low threshold.

Findings

Single-mode lasing at 960 nm at 300 K

Minimum lasing threshold of 1.2 mW

Quality factor exceeding 8000

Abstract

High-quality micropillar cavities were grown using molecular-beam epitaxy. Stable continuous-wave lasing at room-temperature was demonstrated for microlasers with semiconductor and hybrid output mirrors. At 300 K, single-mode lasing was demonstrated for micropillars with a diameter of 5 $\mu$m at a wavelength of 960 nm, with a minimum lasing threshold of 1.2 mW and a bare quality-factor exceeding 8000.