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Nonlinear radiation imprisonment in magneto-optical vapor traps

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Author

  • N. N. Bezuglov
  • Andreas Molisch
  • F. Fuso
  • M. Allegrini
  • A. Ekers

Summary, in English

We analyze nonlinear radiation imprisonment (RI) effects in an optically thick vapor in different temperature regimes. An analytical approach is proposed to treat nonlinear decay problems. Special attention is paid to vapor samples having curvilinear geometries (cylinder, sphere) and being excited by a strong laser pulse. We derive a number of new formulas for different radiative trapping factors as functions of opacity and propose a general approach for RI evaluation allowing us to deal with samples both at room and low, or very low, temperatures, such as those customarily achieved in magneto-optical trap (MOT) experiments. As a result, we predict a "subnatural" decay of radiation escaping from cold vapors, which can be envisioned as the basis for a sensitive and reliable MOT diagnostic tool.

Publishing year

2008

Language

English

Pages

11-11

Publication/Series

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

77

Issue

6

Document type

Journal article

Publisher

American Physical Society

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • RESONANCE
  • VELOCITY REDISTRIBUTION
  • ANALYTICALLY SOLVABLE PROBLEMS
  • GEOMETRIES
  • RADIATION
  • EXCITATION TRANSFER
  • EXCITED ATOMS

Status

Published

Research group

  • Radio Systems

ISBN/ISSN/Other

  • ISSN: 1050-2947