Nn. Zinov'Ev et al., Terahertz injection electroluminescence in multiperiod quantum-cascade AlGaAs/GaAs structures, JETP LETTER, 74(2), 2001, pp. 100-102
Terahertz electroluminescence in the range approximate to1.5 THz was observ
ed in a quantum-cascade GaAs/AlGaAs structure containing 40 periods of tunn
el-coupled wells. The luminescence is caused by the spatially indirect opti
cal electron transitions between the ground states of neighboring quantum w
ells. (C) 2001 MAIK "Nauka/Interperiodica".