
Andreas Wacker
Professor

Coexistence of gain and absorption
Author
Summary, in English
Scattering not only broadens the width of the optical transition between two levels but can enable optical gain and absorption to coexist — a fact that is unambiguously demonstrated by the observation of 'Bloch gain' in a quantum cascade laser.
Department/s
- Mathematical Physics
Publishing year
2007
Language
English
Pages
298-299
Publication/Series
Nature Physics
Volume
3
Document type
Journal article (letter)
Publisher
Nature Publishing Group
Topic
- Condensed Matter Physics
Status
Published
Research group
- Linne Center for Nanoscience and Quantum Engineering
ISBN/ISSN/Other
- ISSN: 1745-2473