Nonlinear radiation imprisonment in magneto-optical vapor traps
Författare
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