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Experimental observation of elliptical defocusing in the organic material (p-toluene sulfonate)polydiacetylene

T. G. Harvey, W. Ji, A. K. Kar, B. S. Wherrett, D. Bloor, and P. A. Norman

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Abstract

Novel, low-power nonlinear self-defocusing has been observed experimentally with the use of the poly-bis-(p-toluene sulfonate) ester of 2,4-hexadiyne-1,6-diol. The strong anisotropy of the material’s thermal conductivity, combined with the high observed thermo-optic coefficient, is shown to cause the phenomenon.

© 1991 Optical Society of America

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