G. Bacher et al., ROOM-TEMPERATURE STIMULATED-EMISSION FROM A CDTE CDMGTE SUPERLATTICE LASER STRUCTURE IN THE RED SPECTRAL RANGE, IEEE photonics technology letters, 6(2), 1994, pp. 125-127
We have investigated the optical response of a red emitting CdTe/CdMgT
e laser structure after optical excitation. For the first time, stimul
ated emission has been observed in this material system at room temper
ature, demonstrating the potential for the development of CdTe/CdMgTe
laser structures in the visible spectral range. An analysis of our exp
erimental data yields a threshold carrier density of about 3.5.10(12)
cm-2 and a net gain coefficient of about 95 cm-1 at T = 300 K.