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Published March 1, 2022 | Submitted + Supplemental Material
Journal Article Open

Optical phased array neural probes for beam-steering in brain tissue

Abstract

Implantable silicon neural probes with integrated nanophotonic waveguides can deliver patterned dynamic illumination into brain tissue at depth. Here, we introduce neural probes with integrated optical phased arrays and demonstrate optical beam steering in vitro. Beam formation in brain tissue is simulated and characterized. The probes are used for optogenetic stimulation and calcium imaging.

Additional Information

© 2022 Optica Publishing Group. Received 26 August 2021; revised 28 November 2021; accepted 9 December 2021; posted 13 December 2021; published 18 February 2022. Funding: National Institutes of Health (NS090596, NS099726); Caltech Kavli Nanoscience Institute; Canadian Institutes of Health Research; Natural Sciences and Engineering Research Council of Canada. The authors declare no conflicts of interest. Data availability: Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

Attached Files

Submitted - 2108.04933.pdf

Supplemental Material - 5575494.pdf

Supplemental Material - Visualization1.mp4

Supplemental Material - Visualization2.mp4

Supplemental Material - Visualization3.mp4

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Additional details

Created:
August 20, 2023
Modified:
December 22, 2023