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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 6 — Mar. 15, 2007
  • pp: 665–667

Nonlinear electronic line shape determination in Yb 3 + -doped phosphate glass

D. N. Messias, T. Catunda, J. D. Myers, and M. J. Myers  »View Author Affiliations


Optics Letters, Vol. 32, Issue 6, pp. 665-667 (2007)
http://dx.doi.org/10.1364/OL.32.000665


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Abstract

Nonlinear refraction spectroscopy has been performed in Yb 3 + -doped phosphate glass to determinate the line shape of real and imaginary parts of n 2 ( n 2 and n 2 ). The n 2 spectrum presented an asymmetric feature due to the interference of resonant and nonresonant contributions, where the nonresonant term arises from the polarizability difference between excited and ground states ( Δ α ) . The measurements were performed in the transient regime to determine population dynamics and the pump saturation intensity at 975 nm (peak of the absorption spectrum). Because of the small quantum defect of Yb 3 + , we estimated that the magnitude of the thermal lens effect is 20 times smaller than the population lens effect, caused by n 2 .

© 2007 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(300.6250) Spectroscopy : Spectroscopy, condensed matter
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Nonlinear Optics

History
Original Manuscript: June 27, 2006
Revised Manuscript: November 24, 2006
Manuscript Accepted: December 6, 2006
Published: February 15, 2007

Citation
D. N. Messias, T. Catunda, J. D. Myers, and M. J. Myers, "Nonlinear electronic line shape determination in Yb3+-doped phosphate glass," Opt. Lett. 32, 665-667 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-6-665


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