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Proceedings Paper

Characterization of the linear and nonlinear optical properties of polydiacetylenes
Author(s): Tony L. Axon; David Bloor; S. Molyneux; Ajoy Kumar Kar; Brian S. Wherrett
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Paper Abstract

The withdrawal technique is used to obtain the 9-BCMU polydiacetylene (PDA) in the red and blue phases. The ordered blue phase film has an exciton band edge which is shifted by 0.3 eV from that in the less ordered red phase film. The chiral 3-SMBU PDA is found to only exist in an amorphous form in the solid state and films of this polymer are obtained by casting onto a glass substrate. Its absorption edge is intermediate between those obtained in the 9-BCMU films. Refractive indices of 1.65 +/- 0.01 are obtained at 632.8 nm and 1.57 +/- 0.01 at 1.3 micrometers in the red phase 9-BCMU film using a prism coupling technique.

Paper Details

Date Published: 16 December 1993
PDF: 7 pages
Proc. SPIE 2025, Nonlinear Optical Properties of Organic Materials VI, (16 December 1993); doi: 10.1117/12.165274
Show Author Affiliations
Tony L. Axon, Univ. of Durham (United Kingdom)
David Bloor, Univ. of Durham (United Kingdom)
S. Molyneux, Heriot-Watt Univ. (United Kingdom)
Ajoy Kumar Kar, Heriot-Watt Univ. (United Kingdom)
Brian S. Wherrett, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2025:
Nonlinear Optical Properties of Organic Materials VI
Gustaaf R. Moehlmann, Editor(s)

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