Accurate phase mapping of nondiffracting singular beams

C. López-Mariscal, D. Burnham, D. Rudd, D. McGloin, J. C. Gutierrez-Vega

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    We make use of a spatial light modulator to implement a phase-shifting interferometric method to determine the topological charge of multiple singularities embedded in the transverse phase of singular beams. This method allows us to discern between closely spaced singular points and elucidate the dynamics of optical vortices as their charge is increased continually. The transverse phase of beams with a determined phase profile are analyzed used this technique, yielding the precise location of multiple singularities as well as the value of their topological charge. We use apply this method to accurately map the phase and study the transit of vortices across fractional Bessel beams during their continuous order upconversion.
    Original languageEnglish
    Title of host publicationLaser Beam Shaping IX
    EditorsAndrew Forbes, Todd E. Lizotte
    Place of PublicationBellingham
    PublisherSPIE-International Society for Optical Engineering
    ISBN (Print)9780819472823
    Publication statusPublished - 2008
    EventSPIE Optics+Photonics 2008: Laser Beam Shaping IX - San Diego Convention Center, San Diego, United States
    Duration: 11 Aug 200812 Aug 2008

    Publication series

    NameProceedings of SPIE


    ConferenceSPIE Optics+Photonics 2008: Laser Beam Shaping IX
    Country/TerritoryUnited States
    CitySan Diego
    Internet address


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