dc-field-coupled autoionizing states for laser action without population inversion
Journal Article
·
· Physical Review, A (General Physics); (USA)
- School of Physics, University of Hyderabad, Hyderabad 500134, (India)
- Joint Institute for Laboratory Astrophysics, University of Colorado National Institute of Standards and Technology, Boulder, Colorado 80309-0440 (USA)
We consider how externally coupled (e.g., dc-field-coupled) autoionizing states can be useful in producing gain without population inversion. The dc fields produce new absorption minima that enable one to obtain laser action in different frequency regions depending on the strength of the coupling. We calculate absorption and emission profiles assuming that one of the autoionizing states is incoherently pumped as in most conventional laser models. We present numerical results that demonstrate gain regions without population inversion.
- OSTI ID:
- 7149762
- Journal Information:
- Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:9; ISSN PLRAA; ISSN 0556-2791
- Country of Publication:
- United States
- Language:
- English
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