title: Optical phase retrieval using conical refraction in structured media.
abstract: We propose a method of optical phase retrieval based on the conical refraction imaging in structured media. We show that a multilayered dielectric photonic crystal functioning as a conically refractive flat lens can be used to reconstruct phase information of complex optical signals. Our method enables a single simultaneous measurement of multiple images on the same image plane and allows a rapid stable recovery of the optical phase. The planar geometry of the proposed device is compatible with current nano-fabrication techniques and, therefore, can find broad applications in optical signal processing and imaging.
authors.forename: Zun
authors.initials: Z
authors.lastname: Huang
authors.forename: Evgenii E
authors.initials: EE
authors.lastname: Narimanov