Zhu, Y, Mullins, OC, Xiao, M. (1993). Inversionless laser from a closed multilevel system
.
PHYSICAL REVIEW A, 47(1), 602-609. 10.1103/PhysRevA.47.602
Zhu, Y, Mullins, OC, Xiao, M. (1993). Inversionless laser from a closed multilevel system
. PHYSICAL REVIEW A, 47(1), 602-609. 10.1103/PhysRevA.47.602