The dating game at dimension zero: creation and annihilation of phase singularities in optical random waves
Lorenzo De Angelis (TU Delft - Applied Sciences)
Filippo Alpeggiani (TU Delft - Applied Sciences)
Andrea Di Falco (University of St Andrews)
Kobus Kuipers (TU Delft - Applied Sciences)
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Abstract
Phase singularities can be created and annihilated, but always in pairs. With optical near-field measurements, we track singularities in random waves as a function of wavelength, and discover correlations between creation and annihilation events.