3Rd-Order And 5Th-Order Optical Nonlinearities In Organic Materials

    Authors

    A. A. Said; C. Wamsley; D. J. Hagan; E. W. Vanstryland; B. A. Reinhardt; P. Roderer;A. G. Dillard

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Chem. Phys. Lett.

    Keywords

    ABSORPTION; REFRACTION; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    We measure the nonlinear optical properties of solutions of a bisbenzethiozole-substituted thiophene compound (BBTDOT) and didecyloxy substituted polyphenyl (DDOS) using the Z-scan technique with 532 nm picosecond pulses. Both compounds exhibit two-photon absorption (2PA) and excited-state absorption (ESA) from the 2PA generated excited states. We measure the magnitude and sign of the real (refractive) and imaginary (2PA) parts of the third-order hyperpolarizability, and the excited-state absorptive and refractive cross sections. We observe third-order self-focusing in BBTDOT and self-defocusing in DDOS while both show excited-state defocusing. All these effects were previously observed and modeled in semiconductors giving insight into the nonlinearities occurring in these organic materials.

    Journal Title

    Chemical Physics Letters

    Volume

    228

    Issue/Number

    6

    Publication Date

    1-1-1994

    Document Type

    Article

    Language

    English

    First Page

    646

    Last Page

    650

    WOS Identifier

    WOS:A1994PL26100023

    ISSN

    0009-2614

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