Two-photon absorption in 4-butoxycarbonylmethylurethane polydiacetylene waveguides

J. E. Ehrlich, J. D. Valera, A. Darzi, A. C. Walker

Research output: Contribution to journalArticle

Abstract

The strong confinement of light in planar-optical waveguides has been used to measure the two-photon absorption coefficient, ß, in 4-butoxycarbonylmethylurethane polydiacetylene (4BCMU) thin films. Prisms were used to couple the 30-60 ps pulses (up to 10 µJ) from a mode-locked YAG laser (?=1.06 µm) into the thin-film waveguides. A simple analytical theory is compared with the experimental results to give a value of ß?4×10-3 cm/MW.

Original languageEnglish
Pages (from-to)2938-2940
Number of pages3
JournalApplied Physics Letters
Volume59
Issue number23
DOIs
Publication statusPublished - 1991

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waveguides
photons
thin films
optical waveguides
prisms
YAG lasers
absorptivity
pulses

Cite this

Ehrlich, J. E. ; Valera, J. D. ; Darzi, A. ; Walker, A. C. / Two-photon absorption in 4-butoxycarbonylmethylurethane polydiacetylene waveguides. In: Applied Physics Letters. 1991 ; Vol. 59, No. 23. pp. 2938-2940.
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Two-photon absorption in 4-butoxycarbonylmethylurethane polydiacetylene waveguides. / Ehrlich, J. E.; Valera, J. D.; Darzi, A.; Walker, A. C.

In: Applied Physics Letters, Vol. 59, No. 23, 1991, p. 2938-2940.

Research output: Contribution to journalArticle

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