Second-harmonic conical refraction: observation of free and forced harmonic waves

S. A. Zolotovskaya, A. Abdolvand, T. K. Kalkandjiev, E. U. Rafailov

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    Abstract

    Observation of second-harmonic conical refraction in KTiOPO4 crystal is reported. Two second-harmonic conical patterns, namely forced and free harmonic waves, are identified and registered with exceptional clarity and level of details. The forced second-harmonic wave evolves into the characteristic ring intensity distribution while the free-harmonic wave gives a single ray direction, resulting in a spot.

    Original languageEnglish
    Pages (from-to)9-12
    Number of pages4
    JournalApplied Physics B: Lasers and Optics
    Volume103
    Issue number1
    DOIs
    Publication statusPublished - Apr 2011

    Keywords

    • DIFFRACTION
    • LASER
    • CRYSTALS

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