Accurate phase mapping of nondiffracting singular beams

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingPublished conference 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 publicationProceedings, Laser Beam Shaping IX
ISBN (Print)9780819472823
Publication statusPublished - 2008
EventOptical Engineering + Applications, 2008: Laser Beam Shaping IX - San Diego, CA, United States
Duration: 11 Aug 200812 Aug 2008


ConferenceOptical Engineering + Applications, 2008
Country/TerritoryUnited States
CitySan Diego, CA


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