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Towards bi-directional electro-optic neuronal interfaces
Author(s): Han Wang; Udo Römer; Xinyue Lei; Yuan Wei; Amr Al Abed; Francois Ladouceur; Leonardo Silvestri; Nigel Lovell
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Paper 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.

Paper Details

Date Published: 30 December 2019
PDF: 2 pages
Proc. SPIE 11202, Biophotonics Australasia 2019, 112021J (30 December 2019); doi: 10.1117/12.2539997
Show Author Affiliations
Han Wang, The Univ. of New South Wales (Australia)
Udo Römer, The Univ. of New South Wales (Australia)
Xinyue Lei, The Univ. of New South Wales (Australia)
Yuan Wei, The Univ. of New South Wales (Australia)
Amr Al Abed, The Univ. of New South Wales (Australia)
Francois Ladouceur, The Univ. of New South Wales (Australia)
Leonardo Silvestri, The Univ. of New South Wales (Australia)
Nigel Lovell, The Univ. of New South Wales (Australia)


Published in SPIE Proceedings Vol. 11202:
Biophotonics Australasia 2019
Ewa M. Goldys; Brant C. Gibson, Editor(s)

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