Amplification of laser beams counterpropagating through a potassium vapor: The effects of atomic coherence

被引:18
作者
Brown, WJ
Gardner, JR
Gauthier, DJ
Vilaseca, R
机构
[1] DUKE UNIV, CTR NONLINEAR & COMPLEX SYST, DURHAM, NC 27708 USA
[2] UNIV POLITECN CATALUNYA, DEPT FIS & ENGN NUCL, E-08222 TERRASSA, SPAIN
来源
PHYSICAL REVIEW A | 1997年 / 56卷 / 04期
关键词
D O I
10.1103/PhysRevA.56.3255
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We observe amplification of a linearly polarized laser beam propagating through a Doppler-broadened atomic potassium vapor driven by an intense, linear and orthogonally polarized counterpropagating laser beam. The observed gain spectra are well explained by a model that incoporates only the effects of the coherent driving of the atomic dipole moment and not atomic recoil. Our results suggest that the recently reported observations of amplification and lasing using a laser-driven sodium vapor may not arise from the effects of collective atomic recoil.
引用
收藏
页码:3255 / 3261
页数:7
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