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Sensitive measurement of optical nonlinearities using a single beam

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Sheik-Bahae, M., Said, A.A., Wei, T.-H., Hagan, D.J., Van Stryland, E.W.·1990·IEEE Journal of Quantum Electronics

Abstract

A sensitive single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported. The authors describe the experimental details and present a comprehensive theoretical analysis including cases where nonlinear refraction is accompanied by nonlinear absorption. In these experiments, the transmittance of a sample is measured through a finite aperture in the far field as the sample is moved along the propagation path (z) of a focused Gaussian beam. The sign and magnitude of the nonlinear refraction are easily deduced from such a transmittance curve (Z-scan). Employing this technique, a sensitivity of better than lambda /300 wavefront distortion is achieved in n/sub 2/ measurements of BaF/sub 2/ using picosecond frequency-doubled Nd:YAG laser pulses.>

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Metadata

Authors
Sheik-Bahae, M., Said, A. A., Wei, T.-H., Hagan, D. J., & Van Stryland, E. W.
Venue
IEEE Journal of Quantum Electronics
Published
1990-04
Volume
26
Issue
4
Pages
760-769
ISSN
0018-9197 (ISSN-L)
OpenAlex
W2097578667
Cited by
9,053
References
0
FWCI
45.95
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Sensitive measurement of optical nonlinearities using a single beam. https://app.cochat.ai/papers/10.1109/3.53394
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Sheik-Bahae, M., Said, A. A., Wei, T.-H., Hagan, D. J., & Van Stryland, E. W. (1990). Sensitive measurement of optical nonlinearities using a single beam. IEEE Journal of Quantum Electronics. https://doi.org/10.1109/3.53394

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.