Quantum efficiency improvement of a cesium based resonance fluorescence detector by helium-induced collisional excitation energy transfer

Quantum efficiency improvement of a cesium based resonance fluorescence detector (RFD) was achieved by enhancing the transfer in a particular channel of the RFD excitation scheme with noble gas-induced collisional excitation energy transfer (CEET). The influence of Cs–Ar and Cs–He collisional mixing...

Full description

Saved in:
Bibliographic Details
Published in:Spectrochimica acta. Part B: Atomic spectroscopy 2005-07, Vol.60 (6), p.765-774
Main Authors: Correll, Tiffany L., Horvatic, Vlasta, Omenetto, Nicoló, Vadla, Cedomil, Winefordner, James D.
Format: Article
Language:English
Subjects:
Alkali–noble gas mixture
Atomic line filter
Cesium
Collision transfer
Energy transfer
Resonance fluorescence detector
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Quantum efficiency improvement of a cesium based resonance fluorescence detector (RFD) was achieved by enhancing the transfer in a particular channel of the RFD excitation scheme with noble gas-induced collisional excitation energy transfer (CEET). The influence of Cs–Ar and Cs–He collisional mixing between the 6D and 7P states in cesium on the quantum efficiency of the 6S → 6D → 7P → 6S excitation scheme was investigated by fluorescence measurements at relevant transitions. Ar-induced CEET was found to have little effect on the fluorescence response and quantum efficiency of the Cs RFD excitation scheme. However, a 35 fold quantum efficiency increase in the cesium resonance fluorescence detector response at only moderate He pressures was observed.
ISSN:0584-8547
1873-3565
DOI:10.1016/j.sab.2005.05.001