The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Portrait of Andreas Wacker. Photo: Kennet Ruona

Andreas Wacker

Professor

Portrait of Andreas Wacker. Photo: Kennet Ruona

Coexistence of gain and absorption

Author

  • Andreas Wacker

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