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Quantum efficiency improvement of a cesium based resonance fluorescence detector by helium-induced collisional excitation energy transfer (CROSBI ID 114072)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Correll, Tiffany L. ; Horvatić, Vlasta ; Omenetto, Nicoló ; Vadla, Čedomil ; Winefordner, James D. Quantum efficiency improvement of a cesium based resonance fluorescence detector by helium-induced collisional excitation energy transfer // Spectrochimica acta. Part B, Atomic spectroscopy, 60 (2005), 6; 765-774-x

Podaci o odgovornosti

Correll, Tiffany L. ; Horvatić, Vlasta ; Omenetto, Nicoló ; Vadla, Čedomil ; Winefordner, James D.

engleski

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 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.

resonance fluorescence detector; atomic line filter; energy transfer; collision transfer; cesium; alkali-noble gas mixture

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Podaci o izdanju

60 (6)

2005.

765-774-x

objavljeno

0584-8547

Povezanost rada

Fizika

Indeksiranost