Astrointerferometry with discrete optics

TL;DR

This paper introduces a novel astrointerferometry technique using discrete diffraction in waveguide arrays to measure phase and amplitude correlations between telescopes, enhancing astronomical imaging capabilities.

Contribution

The paper presents a new method leveraging discrete optics for astrointerferometry, enabling precise phase and amplitude measurements between multiple telescopes.

Findings

Demonstrates feasibility of using waveguide arrays for astrointerferometry

Provides a scheme to determine mutual correlation functions

Potential to improve astronomical imaging accuracy

Abstract

We propose an innovative scheme exploiting discrete diffraction in a two dimensional array of coupled waveguides to determine the phase and amplitude of the mutual correlation function between any pair of three telescopes of an astrointerferometer.