Beam-Steering Nanophotonic Phased-Array Neural Probes

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

Beam-Steering Nanophotonic Phased-Array Neural Probes

2019

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

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.

Keywords:

Optoelectronics
Beam steering
Nanophotonics
Physics
Optics
Phased array
Beam (structure)
Silicon nitride
space division multiplexing
brain tissue
Optogenetics

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