Abstract
The strong confinement of light in planar-optical waveguides has been used to measure the two-photon absorption coefficient, β, 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 (λ=1.06 μm) into the thin-film waveguides. A simple analytical theory is compared with the experimental results to give a value of β≊4×10−3 cm/MW.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
