Room Temperature Lasing in Subwavelength Cylindrical Metallic Cavity under Pulse Electric Injection

Optimization and far-field characteristic of metal/dielectric coated circular semiconductor nano-lasers

“…Since then, significant progress has been made in this field. To further miniaturize the lasers and realize energy-efficient and integrable of the lasers, researchers have been exploring various shapes of metal-coated semiconductor microcavity lasers, including circular [2][3][4][5] , rectangular [6][7][8][9] , and capsule-shaped [10][11][12][13] cavities. Lasing has been successfully demonstrated under different conditions, such as continuous wave pumping, pulsed optical pumping at room temperature and so on.…”

Room-Temperature Lasing in a Low-Loss Tamm Plasmon Cavity

“…One approach consists in the use of plasmonic modes, which are characterized by strong nanoscale confinement of light, but at the expense of modest Q -factors. − ,, Metal-coated semiconductor cavities are another strategy to make efficient and compact laser sources. In this case, metal prevents the optical mode from leaking outside of the cavity when reducing its size down to the wavelength scale or less, thus, allowing denser integration. ,,,− Furthermore, metallic loss can be maintained quite low, thanks to a rather small overlap between the optical mode and the metal.…”