Quantum Dot Embedded Photonic Synapse-Based Biomimetic Autonomous Light Modulation System

In order to perceive objects clearly, humans receive an appropriate amount of light through the light modulation response. In this study, we fabricated a biomimetic autonomous light modulation system that mimics the pupil and corneal reflections. For the fabrication, the photonic synapse was designed by embedding quantum dots in a metal oxide semiconductor layer. Here unlike other quantum dot based photonic synapses, the introduction of quantum dots can improve the inhibitory properties of photonics synapse. Subsequently, we emulate the pupillary light reflex through the incorporation of the quantum dot embedded photonic synapse, electrochromic device, and CMOS components. Moreover, corneal reflex was stimulated through the connection between a solenoid-based eyelid and the pupillary light reflex system. The system capable of perceiving an appropriate amount of light through autonomous light modulation presents a platform for biomimetic prosthesis.