Abstract
We propose and analyze a novel low-threshold amplification scheme by bichromatically coupling three upper states including a metastable state. We numerically show that it is possible to amplify VUV emission in Kr gases without population inversion at the probe transition. It is shown that the origin of low-threshold gain is the population trapping of upper states dressed by two intense coupling lasers, and there is a possibility of forming large population inversion in optically dressed systems.
| Original language | English |
|---|---|
| Pages (from-to) | 150-157 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 2989 |
| DOIs | |
| Publication status | Published - 1997 Dec 1 |
| Event | Modeling and Simulation of Higher-Power Laser Systems IV - San Jose, CA, United States Duration: 1997 Feb 12 → 1997 Feb 12 |
Keywords
- Dressed state
- Kr gases
- Lasing without population inversion
- Population trapping
- Quantum interference
- Two-photon coherence
- VUV radiation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
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Takeoka, M., Uchida, A., Nakata, T., & Kannari, F. (1997). Low-threshold VUV amplification in Kr gases with a bichromatic coupling method. Proceedings of SPIE - The International Society for Optical Engineering, 2989, 150-157. https://doi.org/10.1117/12.273665