Lund University logotype, link to Lund University
NanoLund in Swedish
Listen

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