Dispersion of the second-order nonlinear susceptibility in ZnTe, ZnSe, and ZnS

Hans Peter Wagner, M. Kühnelt, Wolfgang Werner Langbein, Jørn Märcher Hvam

    Research output: Contribution to journalJournal articleResearchpeer-review

    1370 Downloads (Pure)

    Abstract

    We have measured the absolute values of the second-harmonic generation (SHG) coefficient \d\ for the zinc-blende II-VI semiconductors ZnTe, ZnSe, and ZnS at room temperature. The investigated spectral region of the fundamental radiation lambda(F) ranges from 520 to 1321 nm using various pulsed laser sources. In the transparent region of the II-VI semiconductors, the SHG coefficient exceeds the values of birefringent materials as ammonium dihydrogen phosphate (ADP) and potassium dihydrogen phosphate (KDP) by one or two orders of magnitudes. Above the E-0 band gap a strong dispersion of \d\ is observed, showing a maximum for a second-harmonic frequency close to the E-1 gap. The experimental results are compared to calculated values using a simple three-band model including spin-orbit splitting. Substantial agreement is found to the experimentally observed dispersion of the second-order nonlinear susceptibility. [S0163-1829(98)06539-4].
    Original languageEnglish
    JournalPhysical Review B Condensed Matter
    Volume58
    Issue number16
    Pages (from-to)10494-10501
    ISSN0163-1829
    DOIs
    Publication statusPublished - 1998

    Bibliographical note

    Copyright (1998) by the American Physical Society.

    Keywords

    • SEMICONDUCTORS
    • COEFFICIENTS
    • GAAS
    • OPTICAL SUSCEPTIBILITIES
    • CRYSTALS
    • 2ND-HARMONIC GENERATION
    • INSB
    • INAS

    Fingerprint Dive into the research topics of 'Dispersion of the second-order nonlinear susceptibility in ZnTe, ZnSe, and ZnS'. Together they form a unique fingerprint.

    Cite this