Microscopic theory for intersubband spontaneous emission
(2007) In Physica Status Solidi. C, Current Topics in Solid State Physics 4(2). p.356-359- Abstract
- The amplified spontaneous emission spectra of quantum-cascade laser structures is computed with a Keldysh Green's functions theory. We show that the emission spectra are sharpened in comparison to gain spectra due to wave guide propagation. In addition the different dependence on level occupation causes moderate differences between gain and emission peak positions. Our fit-parameter-free theory is valid in ranges of strong nonequilibrium, where fit-parameters do not even exist.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/764913
- author
- Pereira, M. F.
and Wacker, Andreas
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physica Status Solidi. C, Current Topics in Solid State Physics
- volume
- 4
- issue
- 2
- pages
- 356 - 359
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:47149100237
- ISSN
- 1610-1634
- DOI
- 10.1002/pssc.200673314
- language
- English
- LU publication?
- yes
- id
- 0e4909c5-4e87-4f54-a047-d3eecf2e6c01 (old id 764913)
- date added to LUP
- 2016-04-04 09:21:52
- date last changed
- 2022-01-29 17:33:00
@article{0e4909c5-4e87-4f54-a047-d3eecf2e6c01, abstract = {{The amplified spontaneous emission spectra of quantum-cascade laser structures is computed with a Keldysh Green's functions theory. We show that the emission spectra are sharpened in comparison to gain spectra due to wave guide propagation. In addition the different dependence on level occupation causes moderate differences between gain and emission peak positions. Our fit-parameter-free theory is valid in ranges of strong nonequilibrium, where fit-parameters do not even exist.}}, author = {{Pereira, M. F. and Wacker, Andreas}}, issn = {{1610-1634}}, language = {{eng}}, number = {{2}}, pages = {{356--359}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Physica Status Solidi. C, Current Topics in Solid State Physics}}, title = {{Microscopic theory for intersubband spontaneous emission}}, url = {{http://dx.doi.org/10.1002/pssc.200673314}}, doi = {{10.1002/pssc.200673314}}, volume = {{4}}, year = {{2007}}, }