TY - JOUR
T1 - Fluorescence monitoring of laser induced population changes of 6P and 6D levels in cesium vapor
AU - Pappas, Dimitri
AU - Pixley, Nathan C.
AU - Smith, Benjamin W.
AU - Winefordner, James D.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000/9/1
Y1 - 2000/9/1
N2 - Observations of enhancement and reduction of the fluorescence intensity in the continuous-wave excitation of Cs atomic vapor is reported. The reduction is due to a depopulation of the 62p3/2o state upon illumination of a Cs vapor cell with light corresponding to the 62P3/2o→62D5/2 transition (917.23 nm). Collisional relaxation of the 62D5/2 atoms to the 62D3/2 state, followed by radiative decay to the 62P1/2o state (876.14 nm), creates an increase in the population of the 62P1/2o state. The increase in the excited state population results in an increase in the fluorescence intensity of the 62P1/2o→62S1/2 transition (894.35 nm). These laser induced population changes, monitored by the decrease or increase of the corresponding fluorescence signals, were modeled using a simplified density matrix formalism, which allowed an order of magnitude estimate of the rates of level mixing between 62D states and 62P states.
AB - Observations of enhancement and reduction of the fluorescence intensity in the continuous-wave excitation of Cs atomic vapor is reported. The reduction is due to a depopulation of the 62p3/2o state upon illumination of a Cs vapor cell with light corresponding to the 62P3/2o→62D5/2 transition (917.23 nm). Collisional relaxation of the 62D5/2 atoms to the 62D3/2 state, followed by radiative decay to the 62P1/2o state (876.14 nm), creates an increase in the population of the 62P1/2o state. The increase in the excited state population results in an increase in the fluorescence intensity of the 62P1/2o→62S1/2 transition (894.35 nm). These laser induced population changes, monitored by the decrease or increase of the corresponding fluorescence signals, were modeled using a simplified density matrix formalism, which allowed an order of magnitude estimate of the rates of level mixing between 62D states and 62P states.
UR - http://www.scopus.com/inward/record.url?scp=0034274526&partnerID=8YFLogxK
U2 - 10.1016/S0584-8547(00)00241-X
DO - 10.1016/S0584-8547(00)00241-X
M3 - Article
AN - SCOPUS:0034274526
VL - 55
SP - 1503
EP - 1509
JO - Spectrochimica Acta - Part B Atomic Spectroscopy
JF - Spectrochimica Acta - Part B Atomic Spectroscopy
SN - 0584-8547
IS - 9
ER -