Modulation response of nanoLEDs and nanolasers exploiting Purcell enhanced spontaneous emission.
The modulation bandwidth of quantum well nanoLED and nanolaser devices is calculated from the laser rate equations using a detailed model for the Purcell enhanced spontaneous emission. It is found that the Purcell enhancement saturates when the cavity quality-factor is increased, which limits the maximum achievable spontaneous recombination rate. The modulation bandwidth is thereby limited to a few tens of GHz for realistic devices.
Suhr
T
T
DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Ørsteds Plads 343, DK2800 Kgs., Lyngby, Denmark. suhr@fotonik.dtu.dk
Gregersen
N
N
Yvind
K
K
Mørk
J
J
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D008962:Models, Theoretical; D036103:Nanotechnology / Q000295:instrumentation*; D012542:Scattering, Radiation; D012666:Semiconductors