Third-order optical nonlinearities of poly(arylamino-phenylenevinylene) studied with femtosecond pulses

Anna Samoc; Marek Samoc; Barry Luther-Davies; Regina Stockmann; Hartwig Tillmann; Hans-Heinrich Hoerhold

doi:10.1117/12.444983

19 October 2001 Third-order optical nonlinearities of poly(arylamino-phenylenevinylene) studied with femtosecond pulses

Anna Samoc, Marek Samoc, Barry Luther-Davies, Regina Stockmann, Hartwig Tillmann, Hans-Heinrich Hoerhold

Proceedings Volume 4580, Optoelectronics, Materials, and Devices for Communications; (2001) https://doi.org/10.1117/12.444983
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

Abstract

Time-resolved degenerate four-wave mixing (DFWM) experiments performed on films of triphenylamino-phenylene vinylene (TPA-PPV) copolymer show the modulus of the nonlinear refractive index to be (2.1#0.4) x10-13 cm2/W at 800 nm. The polymer was synthesized in the Hoerner-type polycondensation reaction. The films were characterized by optical absorption spectra, molecular weight and glass transition temperature measurements. The linear refractive index measurements performed with a prism coupler indicate that the annealed polymer films are isotropic. The films showed waveguiding of light. The DFWM experiments were performed in the forward BOXCARS geometry with simultaneous monitoring of the phase-matched and the non-phase-matched signals. This allowed measuring the nonlinearity of sub-micrometer thick films even in the presence of signals from a thick glass substrate. A cubic power dependence of the diffracted signal vs. pump intensity was observed as expected for the Kerr-type electronic nonlinearity. The signals showed a strong instantaneous response followed by a slow decay with the time constant 9#2 ps. Z-scan measurements showed the presence of two-photon absorption in the polymer.

Citation Download Citation

Anna Samoc, Marek Samoc, Barry Luther-Davies, Regina Stockmann, Hartwig Tillmann, and Hans-Heinrich Hoerhold "Third-order optical nonlinearities of poly(arylamino-phenylenevinylene) studied with femtosecond pulses", Proc. SPIE 4580, Optoelectronics, Materials, and Devices for Communications, (19 October 2001); https://doi.org/10.1117/12.444983

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available