Bright thermal atomic beams by laser cooling: A 1400-fold gain in beam flux
Using a three-step transverse laser cooling scheme, a strongly diverging flow of metastable Ne(3s super(3)P sub(2)) atoms is compressed into a well-collimated, small diameter atomic beam (e.g., 1.4 mrad HWHM divergence at 3.6 mm beam diameter) with an unmodified axial velocity distribution centered...
Gespeichert in:
Veröffentlicht in: | Applied physics. B, Lasers and optics Lasers and optics, 1996-04, Vol.62 (4), p.323-327 |
---|---|
Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Using a three-step transverse laser cooling scheme, a strongly diverging flow of metastable Ne(3s super(3)P sub(2)) atoms is compressed into a well-collimated, small diameter atomic beam (e.g., 1.4 mrad HWHM divergence at 3.6 mm beam diameter) with an unmodified axial velocity distribution centered at 580 m/s. The maximum increase in beam flux 1.04 m downstream of the source is a factor 1400; the maximum increase in phase space density, i.e., brightness, is a factor 160. The laser power used is only 140 mW. The scheme is extendable to a large variety of atomic species and enables the application of bright atomic beams in many areas of physics. |
---|---|
ISSN: | 0946-2171 1432-0649 |
DOI: | 10.1007/bf01081192 |