Paper
6 July 1994 EZ-scan: single-beam measurement technique for thin-film nonlinearities
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Abstract
Experimental and theoretical results are given for studies of optical limiters designed to increase the functional range without incurring optical damage. In particular, we investigate a tandem geometry with two passive nonlinear elements, one placed in the focal plane of a lens and the second placed `upstream' of the focal position to protect the material at focus from damage. To provide a proof-of-principle demonstration of this geometry, simple limiters consisting of combinations of reverse saturable absorber dyes and a carbon black suspension in thin cells were tested. Our results show that a substantial increase in device performance can be achieved by use of a tandem limiter geometry. Simple modelling predicts that the dynamic range of a separate- element tandem limiter is given by the product of the dynamic ranges of the individual component limiting elements, in agreement with our experimental results. We also describe our numerical beam propagation code, which must be applied for thick limiting elements and in other cases where simple modelling is invalid.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tie Jun Xia, Mansoor Sheik-Bahae, Z. Wang, Ali A. Said, David J. Hagan, and Eric W. Van Stryland "EZ-scan: single-beam measurement technique for thin-film nonlinearities", Proc. SPIE 2229, Nonlinear Optical Materials for Switching and Limiting, (6 July 1994); https://doi.org/10.1117/12.179580
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Cited by 1 scholarly publication.
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KEYWORDS
Thin films

Modeling

Beam propagation method

Carbon

Optical damage

Optical design

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