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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 1 — Jan. 3, 2011

Two-photon absorption cross section measurements of various two-photon initiators for ultrashort laser radiation applying the Z-scan technique

A. Ajami, W. Husinsky, R. Liska, and N. Pucher  »View Author Affiliations


JOSA B, Vol. 27, Issue 11, pp. 2290-2297 (2010)
http://dx.doi.org/10.1364/JOSAB.27.002290


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Abstract

In this paper, we describe the Z-scan measurements of the two-photon absorption (TPA) cross section of various two-photon initiators that are suitable for real three-dimensional structuring of photo-polymerizable formulation. The value of the TPA cross section for the initiator P3K was measured to be 256 GM as the maximum value among the synthesized initiators. Procedures for a precise Z-scan measurement including the measurement of Rayleigh length and beam waist radius are presented. The effect of the pulse width on the Z-scan signal is demonstrated. We also used a flow-cell geometry instead of a static cell in order to refresh the materials to avoid the decomposition of the molecules. This resulted in a more realistic TPA cross section which has been proven by suitable reference compounds.

© 2010 Optical Society of America

OCIS Codes
(120.6710) Instrumentation, measurement, and metrology : Susceptibility
(160.4330) Materials : Nonlinear optical materials
(190.4180) Nonlinear optics : Multiphoton processes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials

ToC Category:
Nonlinear Optics

History
Original Manuscript: July 28, 2010
Revised Manuscript: September 7, 2010
Manuscript Accepted: September 9, 2010
Published: October 14, 2010

Virtual Issues
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics

Citation
A. Ajami, W. Husinsky, R. Liska, and N. Pucher, "Two-photon absorption cross section measurements of various two-photon initiators for ultrashort laser radiation applying the Z-scan technique," J. Opt. Soc. Am. B 27, 2290-2297 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josab-27-11-2290

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