Observation of self-lensing in a 4BCMU-polydiacetylene thin-film waveguide

J. Valera, A. Darzi, A. C. Walker, W. Krug, E. Miao, M. Derstine, J. N. Polky

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Strong self-lensing effects have been observed when propagating 35 ps duration, 1.06 µm wavelength pulses over 5-10 mm distance through thin-film slab waveguides formed from 4BCMU-polydiacetylene. The results are consistent with a negative nonlinear refractive index coefficient (n2) of magnitude 1-2 × 10-13 cm2 w-1.

Original languageEnglish
Pages (from-to)222-223
Number of pages2
JournalElectronics Letters
Issue number4
Publication statusPublished - 1 Jan 1990


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