Nonlinear radiation imprisonment in magneto-optical vapor traps

Research output: Contribution to journalArticle

Abstract

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.

Details

Authors
  • N. N. Bezuglov
  • Andreas Molisch
  • F. Fuso
  • M. Allegrini
  • A. Ekers
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • RESONANCE, VELOCITY REDISTRIBUTION, ANALYTICALLY SOLVABLE PROBLEMS, GEOMETRIES, RADIATION, EXCITATION TRANSFER, EXCITED ATOMS
Original languageEnglish
Pages (from-to)11-11
JournalPhysical Review A (Atomic, Molecular and Optical Physics)
Volume77
Issue number6
Publication statusPublished - 2008
Publication categoryResearch
Peer-reviewedYes