and investigated. The nanolaser is constructed based on an asymmetric hybrid plasmonic
FP cavity with Ag-coated end facets. Lasing characteristics are calculated using finite
element method at the wavelength of 1550 nm. The results show that owing to the low modal
loss, large modal confinement factor of the asymmetric plasmonic cavity structure, in
conjunction with the high reflectivity of the Ag reflectors, a minimum threshold gain of 240 …