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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 12 — Dec. 1, 2012
  • pp: 3386–3392

Photoionization studies from the 3pP2 excited state of neutral lithium

Shaista Shahzada, Palvasha Ijaz, Mehmood Shah, Sami-Ul- Haq, Mushtaq Ahmed, and Ali Nadeem  »View Author Affiliations


JOSA B, Vol. 29, Issue 12, pp. 3386-3392 (2012)
http://dx.doi.org/10.1364/JOSAB.29.003386


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Abstract

In the present work, the experimentally determined oscillator strengths of the 3pP2ndD2 (16n43) Rydberg transitions of lithium have been reported for the first time. The experiments were performed using two dye lasers simultaneously pumped by the second harmonic (532 nm) of an Nd:YAG laser, and the vapor containment and detection system was a thermionic diode ion detector. The first frequency-doubled dye laser excites the ground-state atoms to the 3pP2 excited state at 325.35 nm, and the second dye laser was scanned up to the first ionization threshold. The f-values of the aforementioned transitions have been determined using the threshold value of the photoionization cross section (30±4.8Mb) from the 3pP2 excited state. A complete picture of the oscillator strengths from n=3 to 43 has been presented, including the previously known oscillator strength and determined in this work.

© 2012 Optical Society of America

OCIS Codes
(020.4900) Atomic and molecular physics : Oscillator strengths
(020.5780) Atomic and molecular physics : Rydberg states
(300.6170) Spectroscopy : Spectra
(300.6210) Spectroscopy : Spectroscopy, atomic

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: July 6, 2012
Revised Manuscript: August 30, 2012
Manuscript Accepted: October 8, 2012
Published: November 27, 2012

Citation
Shaista Shahzada, Palvasha Ijaz, Mehmood Shah, Sami-Ul- Haq, Mushtaq Ahmed, and Ali Nadeem, "Photoionization studies from the 3p P2 excited state of neutral lithium," J. Opt. Soc. Am. B 29, 3386-3392 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-12-3386


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