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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 17 — Aug. 23, 2004
  • pp: 3921–3927

Z-scan measurements using femtosecond continuum generation

Leonardo De Boni, Acácio A. Andrade, Lino Misoguti, Cléber R. Mendonça, and Sérgio C. Zilio  »View Author Affiliations

Optics Express, Vol. 12, Issue 17, pp. 3921-3927 (2004)

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We present a single beam Z-scan technique using an intense, broadband, white-light continuum (WLC) beam for the direct measurement of nonlinear absorption spectra. In order to demonstrate the validity of our technique, we compared the results of tetraaniline and Sudan 3 solutions obtained with WLC and conventional single wavelength light sources. Both approaches lead to the same nonlinear spectrum, indicating that the association of the Z-scan technique and the WLC source results in an useful method for the measurement of nonlinear spectra of both absorbing (saturable absorption or reverse saturable absorption) and transparent (two-photon absorption) samples.

© 2004 Optical Society of America

OCIS Codes
(190.4180) Nonlinear optics : Multiphoton processes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6530) Spectroscopy : Spectroscopy, ultrafast

ToC Category:
Research Papers

Original Manuscript: June 16, 2004
Revised Manuscript: August 5, 2004
Published: August 23, 2004

Leonardo De Boni, Acácio Andrade, Lino Misoguti, Cléber Mendonça, and Sérgio Zilio, "Z-scan measurements using femtosecond continuum generation," Opt. Express 12, 3921-3927 (2004)

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