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Optics Letters

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  • Vol. 3, Iss. 4 — Oct. 1, 1978
  • pp: 149–151

Multiphoton excitation and emission from europium ions in aqueous solution

J. F. Giuliani  »View Author Affiliations


Optics Letters, Vol. 3, Issue 4, pp. 149-151 (1978)
http://dx.doi.org/10.1364/OL.3.000149


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Abstract

Simultaneous emission induced by one- and two-photon absorption from the charge-transfer band from aqueous solutions of europium perchlorate pumped by a repetitively pulsed nitrogen laser have been detected. These processes were verified both through the measured fluorescence intensity as a function of the laser flux and from a qualitative analysis of the two overlapping characteristic broad emission spectra, which are dependent on the excitation wavelength. A theoretical fit could be made to the laser-power-dependence data, which gave a two-photon absorption coefficient of approximately 4 × 10−49 cm4 sec/photon-molecule for this system.

© 1978 Optical Society of America

History
Original Manuscript: May 30, 1978
Published: October 1, 1978

Citation
J. F. Giuliani, "Multiphoton excitation and emission from europium ions in aqueous solution," Opt. Lett. 3, 149-151 (1978)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-3-4-149


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References

  1. Y. Haas, G. Stein, M. Tomkiewicz, “Fluorescence and photochemistry of the charge-transfer band in aqueous europium (iii) solutions,” J. Phys. Chem. 74, 2558–2562 (1970). [CrossRef]
  2. T. Donohue, “Photochemical separation of europium from lanthanide mixtures in aqueous solution,” J. Chem. Phys. 67, 5403–5404 (1977). [CrossRef]
  3. D. Kleinman, “Laser and two-photon processes,” Phys. Rev. 125, 87–88 (1962). [CrossRef]
  4. G. Bret, H. P. Weber, “Forward emission of Raman radiation in various liquids,” in Physics of Quantum Electronics, P. L. Kelley, B. Lax, P. E. Tannenwald, eds. (McGraw-Hill, New York, 1966), p. 180.

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