Nonlinear absorption and refraction in CuCl at 532 nm

    Authors

    A. A. Said; T. Xia; D. J. Hagan; E. W. VanStryland;M. SheikBahae

    Comments

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

    Abbreviated Journal Title

    J. Opt. Soc. Am. B-Opt. Phys.

    Keywords

    Z-SCAN MEASUREMENTS; 2-PHOTON ABSORPTION; ZINCBLENDE SEMICONDUCTORS; OPTICAL NONLINEARITIES; SINGLE-BEAM; ANISOTROPY; GAAS; CDTE; Optics

    Abstract

    We report two-photon absorption in CuCl and its polarization dependence to give all three chi((3)) tensor elements at 532 nm. We also report bound electronic n(2) and free-carrier refraction in CuCl. The values obtained are each approximately one half the corresponding values for ZnSe. Previously, with ZnSe, the large two-photon absorption(2PA) and negative bound-electronic nonlinear refraction were combined with defocusing from 2PA-generated free carriers to provide effective optical limiting for visible picosecond input pulses. For nanosecond pulses thermal refraction is a problem because it leads to self focusing, and thus damage in ZnSe and most other semiconductors studied. However, the thermal refraction in CuCl is reported to be self-defocusing. Thus one might expect the self-protection properties of CuCl to be better than those of ZnSe for optical-limiting applications for nanosecond input pulses. (C) 1997 Optical Society of America.

    Journal Title

    Journal of the Optical Society of America B-Optical Physics

    Volume

    14

    Issue/Number

    4

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    824

    Last Page

    828

    WOS Identifier

    WOS:A1997WU01700017

    ISSN

    0740-3224

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