Zi. Alferov et al., AN INJECTION HETEROJUNCTION LASER-BASED ON ARRAYS OF VERTICALLY COUPLED INAS QUANTUM DOTS IN A GAAS MATRIX, Semiconductors, 30(2), 1996, pp. 194-196
Lasing via the ground state of an exciton in vertically coupled quantu
m dots all the way to 300 K is demonstrated for the first time. At 80
K, the threshold current density was J(th)similar to 40 A/cm(2) The te
mperature dependence of the threshold current density in the range 80-
180 K is described by a characteristic temperature of T-o=430 K. (C) 1
996 American Institute of Physics.