|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Distributed Feedback Lasing with Cold Atoms | | Alexander Schilke
; Claus Zimmermann
; Philippe W. Courteille
; William Guerin
; | | Date: |
28 Sep 2011 | | Abstract: | There is currently a strong interest in mirrorless lasing. In these systems,
the electromagnetic feedback is provided either by disorder, i.e., multiple
scattering in the gain medium itself, or by order, i.e., multiple Bragg
reflection. This corresponds, respectively, to "random lasers" and "photonic
crystal lasers". The crossover regime, between order and disorder, or
correlated disorder, starts also to be fruitfully investigated. Here, we report
one-dimensional photonic crystal lasing, i.e., distributed feedback lasing,
with a cold atom cloud that provides simultaneously both gain and feedback. The
atoms are trapped in a 1D lattice, giving a density modulation that creates a
strong Bragg reflection under a small angle of incidence. Pumping the atoms
with auxiliary beams induces four wave mixing that provides gain. The
combination of both ingredients generates a mirrorless laser with a conical
output emission, whose apex angle is tunable with the lattice periodicity
through the Bragg condition. | | Source: | arXiv, 1109.6114 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER