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Title: Gain Narrowing in Few-Atom Systems

Abstract

Using a density matrix approach, we study the simplest systems that display both gain and feedback: clusters of 2 to 5 atoms, one of which is pumped. The other atoms supply feedback through multiple scattering of light. We show that, if the atoms are in each other's near field, the system exhibits large gain narrowing and spectral mode redistribution. The observed phenomena are more pronounced if the feedback is enhanced. Our system is to our knowledge the simplest exactly solvable microscopic system which shows the approach to laser oscillation.

Authors:
 [1];  [2];  [1];  [3]
  1. FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ, Amsterdam (Netherlands)
  2. Complex Photonic Systems, MESA Research Institute, University of Twente, Post Office Box 217, 7500 AE Enschede (Netherlands)
  3. (Netherlands)
Publication Date:
OSTI Identifier:
20957724
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevLett.98.103601; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DENSITY MATRIX; EXACT SOLUTIONS; FEEDBACK; LASERS; LIGHT SCATTERING; MULTIPLE SCATTERING; OSCILLATIONS; VISIBLE RADIATION

Citation Formats

Savels, Tom, Mosk, Allard P., Lagendijk, Ad, and Complex Photonic Systems, MESA Research Institute, University of Twente, Post Office Box 217, 7500 AE Enschede. Gain Narrowing in Few-Atom Systems. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.103601.
Savels, Tom, Mosk, Allard P., Lagendijk, Ad, & Complex Photonic Systems, MESA Research Institute, University of Twente, Post Office Box 217, 7500 AE Enschede. Gain Narrowing in Few-Atom Systems. United States. doi:10.1103/PHYSREVLETT.98.103601.
Savels, Tom, Mosk, Allard P., Lagendijk, Ad, and Complex Photonic Systems, MESA Research Institute, University of Twente, Post Office Box 217, 7500 AE Enschede. Fri . "Gain Narrowing in Few-Atom Systems". United States. doi:10.1103/PHYSREVLETT.98.103601.
@article{osti_20957724,
title = {Gain Narrowing in Few-Atom Systems},
author = {Savels, Tom and Mosk, Allard P. and Lagendijk, Ad and Complex Photonic Systems, MESA Research Institute, University of Twente, Post Office Box 217, 7500 AE Enschede},
abstractNote = {Using a density matrix approach, we study the simplest systems that display both gain and feedback: clusters of 2 to 5 atoms, one of which is pumped. The other atoms supply feedback through multiple scattering of light. We show that, if the atoms are in each other's near field, the system exhibits large gain narrowing and spectral mode redistribution. The observed phenomena are more pronounced if the feedback is enhanced. Our system is to our knowledge the simplest exactly solvable microscopic system which shows the approach to laser oscillation.},
doi = {10.1103/PHYSREVLETT.98.103601},
journal = {Physical Review Letters},
number = 10,
volume = 98,
place = {United States},
year = {Fri Mar 09 00:00:00 EST 2007},
month = {Fri Mar 09 00:00:00 EST 2007}
}