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SYAD: Symposium SAMOP Dissertation Prize 2020
SYAD 1: SAMOP Dissertation Prize
SYAD 1.3: Hauptvortrag
Dienstag, 10. März 2020, 12:00–12:30, e415
Structured singular light fields — •Eileen Otte — Institute of Applied Physics, University of Muenster, Germany
Structured singular light fields are characterized by a spatially varying amplitude, phase and/or polarization, enabling the occurrence of singularities. These singularities are particularly interesting because, as structurally stable units of the light field, they determine its topology. In wave optics, singularities may occur in phase or polarization. Phase singularities are locations of undefined phase, causing intensity to vanish. In polarization singularities certain properties of polarization ellipses are undefined - as the oscillation direction of light.
Structured singular light is a ubiquitous phenomenon, not only observable in shallow water, but also the blue daylight sky. However, its artificial creation and especially customization of all its properties represents a major current challenge. If this succeeds comprehensively, singular light could revolutionize many applications.
I will present novel approaches finally enabling the full customization, detailed analysis, and application of structured singular light fields. The developed methods facilitate the fundamental investigation of, e.g., the fields' propagation behavior or the creation of an additional dimension by tight focusing. These fundamental results have opened innovative application perspectives: novel classical and quantum information technologies and tailored optical manipulation. Further, we developed a pioneering nanotomographic approach enabling the identification of typically invisible non-paraxial field properties, unlocking the huge potential of nano-structured light for applied optics.