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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 36 — Dec. 20, 1999
  • pp: 7481–7485

Resonance ionization spectroscopy in a thermal lithium beam by means of diode lasers

Ignacio E. Olivares and Andrés E. Duarte  »View Author Affiliations


Applied Optics, Vol. 38, Issue 36, pp. 7481-7485 (1999)
http://dx.doi.org/10.1364/AO.38.007481


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Abstract

We measured two-step photoion current spectra by using a semiconductor laser and a Q-switched Nd:YAG laser with fourth-harmonic generation in an atomic lithium beam. The number of ions measured was compared with an estimate from the diode laser absorption measurement that uses a set of precisely solved rate equations. We explain the saturation effects on absorption by using transit time relaxation and detailed calculations of the ionization levels.

© 1999 Optical Society of America

OCIS Codes
(300.6170) Spectroscopy : Spectra
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6350) Spectroscopy : Spectroscopy, ionization
(300.6410) Spectroscopy : Spectroscopy, multiphoton
(300.6540) Spectroscopy : Spectroscopy, ultraviolet
(300.6550) Spectroscopy : Spectroscopy, visible

History
Original Manuscript: May 21, 1999
Revised Manuscript: September 9, 1999
Published: December 20, 1999

Citation
Ignacio E. Olivares and Andrés E. Duarte, "Resonance ionization spectroscopy in a thermal lithium beam by means of diode lasers," Appl. Opt. 38, 7481-7485 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-36-7481


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References

  1. T. Arisawa, Y. Maruyama, Y. Suzuki, K. Shiba, “Lithium isotope separation by laser,” Appl. Phys. B 28, 73–76 (1982). [CrossRef]
  2. N. V. Karlov, B. B. Krynetskii, O. M. Stel’makh, “Measurement of the photoionization cross section of the Li atom at the 2P level,” Sov. J. Quantum Electron. 7, 1305–1306 (1977). [CrossRef]
  3. M. Yamashita, H. Kashiwagi, “Method for separation and enrichment of lithium isotopes by laser,” U.S. Patent4,149,077 (10April1979).
  4. M. G. Payne, L. Deng, N. Thonnard, “Applications of resonance ionization mass spectroscopy,” Rev. Sci. Instrum. 65, 2433–2459 (1994). [CrossRef]
  5. G. S. Hurst, M. G. Payne, S. D. Kramer, J. P. Young, “Resonance ionization spectroscopy and one-atom detection,” Rev. Mod. Phys. 51, 767–819 (1979). [CrossRef]
  6. I. E. Olivares, A. E. Duarte, T. Lokajczyk, A. Dinklage, F. J. Duarte, “Doppler-free spectroscopy and collisional studies with tunable diode lasers of lithium isotopes in a heat-pipe oven,” J. Opt. Soc. Am. B 15, 1932–1939 (1998). [CrossRef]
  7. A. Dinklage, T. Lokajczyk, H. J. Kunze, B. Schweer, I. E. Olivares, “In situ density measurement for a thermal lithium beam employing diode lasers,” Rev. Sci. Instrum. 69, 321–322 (1998). [CrossRef]
  8. C. J. Sansonetti, B. Richou, R. Engleman, L. J. Radziemski, “Measurements of the resonance lines of 6Li and 7Li by Doppler-free frequency modulation spectroscopy,” Phys. Rev. A 52, 2682–2688 (1995). [CrossRef] [PubMed]
  9. J. R. Ackerhalt, B. W. Shore, “Rate equations versus Bloch equations in multiphoton ionization,” Phys. Rev. A 16, 277–282 (1977). [CrossRef]

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