Optical selectivity calculation of calcium isotopes in a double-resonance ionization scheme
M Sankari; P V Kiran Kumar; M V Suryanarayana; M Sankari; National Centre for Compositional Characterization of Materials, ECIL (PO), Hyderabad 500 062, India; P V Kiran Kumar; National Centre for Compositional Characterization of Materials, ECIL (PO), Hyderabad 500 062, India; M V Suryanarayana; National Centre for Compositional Characterization of Materials, ECIL (PO), Hyderabad 500 062, India
Журнал:
Journal of Physics B: Atomic, Molecular and Optical Physics
Дата:
2000-11-14
Аннотация:
Optical selectivities of calcium isotopes have been calculated for the 4s<sup>2</sup> <sup>1</sup>S<sub>0</sub> 4s4p <sup>1</sup>P<sub>1</sub> 4s4d <sup>1</sup>D<sub>2</sub>Ca<sup>+</sup> double-resonance ionization scheme using the spectral simulation (SS) approach. Optical selectivities obtained by the SS approach are in good agreement with the results obtained by the density matrix formalism. Studies on the effect of laser detuning and linewidth on optical selectivities indicate that lasers with 50 MHz linewidth for both the excitation steps can yield an optical selectivity of 2.2×10<sup>5</sup>, which is adequate for selective excitation of the <sup>41</sup>Ca isotope for certain applications.
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