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physics.optics2020
Knotted Polarizations and Spin in 3D Polychromatic Waves
Danica Sugic, Mark R. Dennis, Franco Nori +1
We consider complex 3D polarizations in the interference of several vector wave fields with different commensurable frequencies and polarizations. We show that the resulting polari…
physics.optics2018
Singular knot bundle in light
Danica Sugic, Mark R. Dennis
As the size of an optical vortex knot, imprinted in a coherent light beam, is decreased, nonparaxial effects alter the structure of the knotted optical singularity. For knot struct…