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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 8 — Aug. 1, 2013
  • pp: 2292–2295

Impact of two-photon absorption on second-harmonic generation in CdTe as probed by wavelength-dependent Z-scan nonlinear spectroscopy

J. I. Jang, S. Park, D. J. Clark, F. O. Saouma, D. Lombardo, C. M. Harrison, and B. Shim  »View Author Affiliations


JOSA B, Vol. 30, Issue 8, pp. 2292-2295 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002292


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Abstract

We present a nonlinear optical (NLO) probe technique, wavelength-dependent Z-scan nonlinear spectroscopy (WDZNS), which can be utilized for assessing broadband NLO properties of materials. Unlike typical Z-scans, WDZNS can spectrally monitor the frequency-doubled output as a function of wavelength λ as well as input intensity I. Based on WDZNS we have investigated the strong impact of two-photon absorption (TPA) on second-harmonic generation in CdTe over a broad TPA range. This complicated NLO effect is characterized by the λ-dependent TPA coefficient, which is consistent with a simple two-band model. The relative second-order NLO dispersion derived from WDZNS is also consistent with previous measurements.

© 2013 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 12, 2013
Revised Manuscript: July 2, 2013
Manuscript Accepted: July 2, 2013
Published: July 29, 2013

Citation
J. I. Jang, S. Park, D. J. Clark, F. O. Saouma, D. Lombardo, C. M. Harrison, and B. Shim, "Impact of two-photon absorption on second-harmonic generation in CdTe as probed by wavelength-dependent Z-scan nonlinear spectroscopy," J. Opt. Soc. Am. B 30, 2292-2295 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-8-2292

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