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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 5 — May. 1, 2001
  • pp: 623–627

Third-order susceptibility measurement by a new Mach–Zehnder interferometry technique

G. Boudebs, M. Chis, and X. Nguyen Phu  »View Author Affiliations


JOSA B, Vol. 18, Issue 5, pp. 623-627 (2001)
http://dx.doi.org/10.1364/JOSAB.18.000623


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Abstract

A new technique for measuring third-order susceptibility with a Mach–Zehnder interferometer with a pump–probe system is proposed. The optical setup is combined with a charge-coupled device for image processing. With the proposed method it is possible to resolve the spatial profile of a complex nonlinear variation index with only one laser shot in the nonlinear material. Therefore we can get intensity-resolved information by comparing this profile, pixel per pixel, with that of the incident beam. To verify the validity of the method, we carry out measurements of reference materials illuminated by linearly polarized light. Good agreement is obtained with measurements made by various authors. An advantage of this new technique is that only one laser shot is needed to minimize the risk of damage in fragile nonlinear materials.

© 2001 Optical Society of America

OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(100.2650) Image processing : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.4330) Materials : Nonlinear optical materials
(190.3270) Nonlinear optics : Kerr effect
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in

Citation
G. Boudebs, M. Chis, and X. Nguyen Phu, "Third-order susceptibility measurement by a new Mach–Zehnder interferometry technique," J. Opt. Soc. Am. B 18, 623-627 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-5-623

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