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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 2 — Feb. 10, 2009

Synchronized double L-scan technique for the simultaneous measurement of polarization- dependent two-photon absorption in chiral molecules

Leonardo De Boni, Carlos Toro, and Florencio E. Hernández  »View Author Affiliations


Optics Letters, Vol. 33, Issue 24, pp. 2958-2960 (2008)
http://dx.doi.org/10.1364/OL.33.002958


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Abstract

We report on a double L-scan technique for the simultaneous measurements of polarization-dependent nonlinear absorption. The high sensitivity of this method resides on the synchronized measurements of “twin” laser pulses to compensate for energy and mode fluctuations in the sample. This technique was successfully applied to the accurate determination of two-photon absorption (2PA) circular dichroism and 2PA circular-linear dichroism in a chiral solution. To our knowledge, this is the first time these nonlinear optical effects have been accurately measured. Our technique is expected to lead efforts in the study of biological systems and in the design of metamaterials with a negative refractive index.

© 2008 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(190.4180) Nonlinear optics : Multiphoton processes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 5, 2008
Revised Manuscript: October 29, 2008
Manuscript Accepted: October 30, 2008
Published: December 5, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Leonardo De Boni, Carlos Toro, and Florencio E. Hernández, "Synchronized double L-scan technique for the simultaneous measurement of polarization-dependent two-photon absorption in chiral molecules," Opt. Lett. 33, 2958-2960 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-33-24-2958

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