Beam-Steering Nanophotonic Phased-Array Neural Probes

Creators: Sacher, Wesley D.; Liu, Xinyu; Chen, Fu-Der; Moradi-Chameh, Homeira; Felts Almog, Ilan; Lordello, Thomas; Chang, Michael; Naderian, Azadeh; Fowler, Trevor M.; Segev, Eran; Xue, Tianyuan; Mahallati, Sara; Valiante, Taufik A.; Moreaux, Laurent C.; Poon, Joyce K. S.; Roukes, Michael L.

Abstract

We demonstrate the first implantable nanophotonic neural probes with integrated silicon nitride phased arrays. Coherent beam-steering is achieved in brain tissue by wavelength tuning. Beam profiles, optogenetic stimulation, and functional imaging are validated in vitro.

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