3D-Printed and PDLC-Tuned Corner Cube RetroReflector for Sunlight Communication

Abstract

We present a 3D-printed corner cube retroreflector which is tunable through the polymer dispersed liquid crystal (PDLC). Distinguishable on-off states have been demonstrated by adjusting the voltage across the PDLC layer. This device is developed for free-space optical communication, especially of outdoor applications where sunlight can be used as the light source.