Towards bi-directional electro-optic neuronal interfaces

Han Wang; Udo Römer; Xinyue Lei; Yuan Wei; Amr Al Abed; Francois Ladouceur; Leonardo Silvestri; Nigel Lovell

doi:10.1117/12.2539997

30 December 2019 Towards bi-directional electro-optic neuronal interfaces

Han Wang, Udo Römer, Xinyue Lei, Yuan Wei, Amr Al Abed, Francois Ladouceur, Leonardo Silvestri, Nigel Lovell

Proceedings Volume 11202, Biophotonics Australasia 2019; 112021J (2019) https://doi.org/10.1117/12.2539997
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

This paper presents an investigation into a novel electro-optic device for bi-directional brain-machine interface (BMI) by using both a chiral smectic C* liquid crystal to sense neuronal signals and the photovoltaic effect to stimulate neuronal tissues. By leveraging both the optical and electrical domains, this new electro-optic device can achieve high density of channel count and we have so far demonstrated up to 323 such channels. We focus here on tissue stimulation by adding a photovoltaic PN junction into the LC sensing structure described elsewhere to achieve a full bi-directional neuronal interface.

Citation Download Citation

Han Wang, Udo Römer, Xinyue Lei, Yuan Wei, Amr Al Abed, Francois Ladouceur, Leonardo Silvestri, and Nigel Lovell "Towards bi-directional electro-optic neuronal interfaces", Proc. SPIE 11202, Biophotonics Australasia 2019, 112021J (30 December 2019); https://doi.org/10.1117/12.2539997

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