Phase singularities in complex fields are deep-subwavelength optical entities of wide interest. Their distributions in two-dimensional random waves are for example reminiscent of those of particles in ionic liquids. By mapping the in-plane complex optical field above a chaotic resonator, we experimentally determine the statistics of phase singularities in random waves. All the measured quantities are in excellent agreement with theoretical predictions.

Dordrecht: Springer
B. Di Bartolo , J. Collins , L. Silvestri
doi.org/10.1007/978-94-024-0850-8_48
NATO Science for Peace and Security Series B: Physics and Biophysics (NAPSB)

De Angelis, L, van der Wel, R.E.C, le Feber, B, & Kuipers, L.K. (2017). Phase Singularities in Random Waves: Exploring Optical Statistics at the Nanoscale. In B Di Bartolo, J Collins, & L Silvestri (Eds.), Nano-Optics : Principles Enabling Basic Research and Applications (pp. 495–497). Springer. doi:10.1007/978-94-024-0850-8_48