Zhu, Y. (1992). Lasing without inversion in a closed three-level system
.
Physical Review A (PRA), 45(9), R6149-R6152. 10.1103/PhysRevA.45.R6149
Zhu, Y. (1992). Lasing without inversion in a closed three-level system
. Physical Review A (PRA), 45(9), R6149-R6152. 10.1103/PhysRevA.45.R6149