Scalar field of non-paraxial Gaussian beams

Z. Ulanowski, I.K. Ludlow

    Research output: Contribution to journalArticlepeer-review

    85 Downloads (Pure)

    Abstract

    A family of closed form expressions for the scalar field of strongly focused Gaussian beams in oblate spheroidal coordinates is given. The solutions satisfy the wave equation and are free from singularities. The lowest order solution in the far field closely matches the energy density produced by a sine condition, high-aperture lens illuminated by a paraxial Gaussian beam. At the large waist limit it reduces to the paraxial Gaussian beam form. It is equivalent to the spherical wave of combined complex point source and sink but has the advantage of more direct interpretation.
    Original languageEnglish
    JournalOpt. Lett. 25
    Volume1792
    Publication statusPublished - 2000

    Keywords

    • focused beam
    • non-paraxial beam

    Fingerprint

    Dive into the research topics of 'Scalar field of non-paraxial Gaussian beams'. Together they form a unique fingerprint.

    Cite this