Four level, atomic Cs laser at 852.1 nm with a quantum efficiency above 98%: Observation of three body photoassociation
Lasing on the D 2 ( 6 p P 2 3 / 2 → 6 s S 2 1 / 2 ) transition of atomic Cs at 852.1 nm has been observed with a four level system in which the Cs 6 p P 2 3 / 2 state is pumped by the photoassociation and subsequent dissociation of Cs-rare gas collision pairs. Characterized by a quantum efficiency &...
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| Veröffentlicht in: | Applied physics letters 2010-07, Vol.97 (2), p.021104-021104-3 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Lasing on the
D
2
(
6
p
P
2
3
/
2
→
6
s
S
2
1
/
2
)
transition of atomic Cs at 852.1 nm has been observed with a four level system in which the Cs
6
p
P
2
3
/
2
state is pumped by the photoassociation and subsequent dissociation of Cs-rare gas collision pairs. Characterized by a quantum efficiency
>
98
%
, this laser requires no atomic precursor to the upper laser level and provides oscillation on an alkali transition inaccessible to three level, photopumped alkali laser systems. Measurements of photoabsorption and pump energy threshold in Cs-Ar-Kr mixtures reveal the influence of
three body
photoassociation. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.3452338 |