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Nonlinear radiation imprisonment in magneto-optical vapor traps

Författare

  • 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.

Publiceringsår

2008

Språk

Engelska

Sidor

11-11

Publikation/Tidskrift/Serie

Physical Review A (Atomic, Molecular and Optical Physics)

Volym

77

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

American Physical Society

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

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

Status

Published

Forskningsgrupp

  • Radio Systems

ISBN/ISSN/Övrigt

  • ISSN: 1050-2947