Abstract
We report the first experimental observation of the excitation of the 4p 2 P 3/2, 1/2 resonance states of Ca II (located at 74 720.4 and 74 497.5 cm−1 above the ground state of Ca I) following pulsed-laser pumping of the 4s 2 1 S O−4s4p 3P1 intercombination transition of Ca I (E ex = 15 210 cm−1). Large scale collisional transfer of energy between the laser-excited atoms is believed to be responsible for this. This is possibly because sufficient time is available (τrad of the 4s4p 3 P 1 state is approximately 350 µs) for collisions to build such a high level of excitation. Some interesting additional features of the fluorescence spectra of the laser-pumped Ca vapor, such as temperature dependence of the fluorescence intensities and evolution in time of some selected states, are also presented.
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B. Cheng, Z. Li, Y. Yang, J. Zhu, D. Zhang: Opt. Commun.86, 465 (1991)
M.A. Khan, E.E. Khawaja, H.A. Al-Juwair: J. Phys. B23, L533 (1990)
M.A. Khan, M.F. Al-Kuhaili: J. Phys. B26, 393 (1993)
M.A. Khan, E.E. Khawaja, M.F. Al-Kuhaili: J. Phys. D26, 1614 (1993)
M.A. Khan, E.E. Khawaja: Opt. Commun.86, 386 (1991)
P.-L. Zhang, X.-G. Wu, S.-Y. Zhao: Tech. Dig. Annual Meeting Opt. Soc. Am. (1991) Paper WE-2
R.M. Measures, P.G. Cardinal: Phys. Rev. A23, 804 (1981)
A. Kallenbach, M. Kock: J. Phys. B22, 1705 (1989)
K. Niemax: Appl. Phys. B38, 147 (1985)
E.E. Khawaja, M.A. Khan, H.A. Al-Juwair: Int'l J. Electron.71, 991 (1991)
D. Husain, G. Roberts: J. Chem. Soc. Faraday Trans. II82, 1921 (1986)
J.F. Kelly, M. Harris, A. Gallagher: Phys. Rev. A38, 1225 (1988)
H.G. Werij, M. Harris, J. Cooper, A. Gallagher, J.F. Kelly: Phys. Rev. A43, 2237 (1991)
D.A. Miller, L. You, J. Cooper, A. Gallagher: Phys. Rev. A46, 1303 (1992)
N. Bras, J.C. Jeannet, D. Perrin: J. Phys. B26, 2289 (1993)
P. Bicchi, C. Marinelli, E. Mariotti, M. Meucci, L. Moi: J. Phys. B26, 2335 (1993)
F. Roussel, B. Carre, P. Berger, G. Spiess: J. Phys. B16, 1749 (1983)
S. Majetich, E.M. Boczar, J.R. Wiesenfeld: J. Appl. Phys.66, 475 (1989)
J.H. Goble, W.E. Hollingsworth. J. Winn: Phys. Rev. Lett.47, 1881 (1981)
L. Barbier, M. Cheret: J. Phys. B20, 1229 (1987)
R.J. Malins, D.J. Benard: Chem. Phys. Lett.74, 321 (1980)
M.A. Khan, M.A. Gondal, M.H. Rais: Appl. Phys. B57, 123 (1993)
H.J. Yuh, P. Dagdigian: Phys. Rev. A28, 63 (1983)
W.E. Wiese, M.W. Smith, B.M. Miles,Atomic Transition probabilities Vol II, NSRDS-NBS 22 (US Govt. Press, Washington, DC 1969) pp. 246–254
M.A. Khan: KFUPM-RI Project 12043, Semi-Annual Report III (1994)
C.H. Skinner: J. Phys. B13, 55 (1980)
J.L. Le Gouet, J.L. Picque, F. Wuilleumier, J.M. Bizau, P. Dhez, P. Koch, D.L. Ederer: Phys. Rev. Lett.48, 600 (1982)
J. Sugar, C. Corliss: J.Phys. Chem. Ref. Data14, Suppl. 2, 51 (1985)
M.A. Khan, M.A. Gondal, M.H. Rais: J. Phys. B27, 2889 (1994)
M.A. Khan, J.-P. Connerade, M. Rafique: J. Phys. B27, L563 (1994)
A. Burgess, H.P. Summers: Astrophys. J.157, 1007 (1969)
P.S. Furcinitti, L.C. Balling, J.J. Wright: Phys. Lett. A53, 75 (1975)
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Khan, M.A., Gondal, M.A. & Rais, M.H. Large-scale collisional energy transfer in laser-pumped metastable Ca atoms: Excitation of resonance states of Ca II. Appl. Phys. B 61, 391–399 (1995). https://doi.org/10.1007/BF01081540
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DOI: https://doi.org/10.1007/BF01081540