Back to Search
Start Over
Using quantum coherence to generate gain in the XUV and X-ray: gain-swept superradiance and lasing without inversion
- Source :
- IEEE Journal of Selected Topics in Quantum Electronics. 18:541-553
- Publication Year :
- 2012
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2012.
-
Abstract
- It was shown some time ago that when the excitation of an ensemble of two-level atoms is swept in the direction of lasing, so that atoms are prepared in the excited state just as the radiation from previously excited atoms reaches them, the resulting laser amplifier is “highly anomalous” and yields superradiant emission without population inversion. We here show that transient gain in a three-level system has common features with Dicke superradiance and can yield strong extreme ultraviolet lasing in, for example, He atoms (at 58 nm) or He-like ions such as B3+ (at 6.1 nm).
- Subjects :
- Condensed Matter::Quantum Gases
Quantum optics
Physics
Physics::Optics
Superradiance
Laser
Population inversion
Atomic and Molecular Physics, and Optics
law.invention
law
Extreme ultraviolet
Excited state
Spontaneous emission
Physics::Atomic Physics
Electrical and Electronic Engineering
Atomic physics
Lasing threshold
Subjects
Details
- ISSN :
- 15584542 and 1077260X
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- IEEE Journal of Selected Topics in Quantum Electronics
- Accession number :
- edsair.doi...........6614c4e49844d96290e8cba85ff5833a