Observation of Unidirectional Amplified Spontaneous Emission Induced by Velocity-Dependent Light Shifts
G. Petite, Bernadette Johnson, Wulfhard K. Lange +1 more
Laser-induced velocity-dependent light shifts have been used to compensate the Doppler broadening of an atomic transition. The unidirectional feature of this technique allowed us to observe a forward/backward asymmetry in the amplified spontaneous emission from an excited sodium vapor, switched on by a pulse of laser light.
Physical Review Letters•Oct 13, 1980•7 citations