ArticleScientific reports2024
Implantable photonic neural probes with out-of-plane focusing grating emitters.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Nanophotonic neural probes for in vivo photostimulation, electrophysiology, and microfluidic delivery.Microsystems & nanoengineering · 2026Article
- Focusing optical phased array for tissue interrogation with improved side-lobe suppression and simplified beam steering.Biomedical optics express · 2026Article
- SAR-Constrained Wireless Power Transfer Modeling for an Implantable Optical Neurostimulator Sensors.Sensors (Basel, Switzerland) · 2025Article
- Implantable silicon neural probes with nanophotonic phased arrays for single-lobe beam steering.Communications engineering · 2024Article
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Authors and funding
9 authors.
Funding
Abstract
We have designed, fabricated, and characterized implantable silicon neural probes with nanophotonic grating emitters that focus the emitted light at a specified distance above the surface of the probe for spatially precise optogenetic targeting of neurons. Using the holographic principle, we designed gratings for wavelengths of 488 and 594 nm, targeting the excitation spectra of the optogenetic actuators Channelrhodopsin-2 and Chrimson, respectively. The measured optical emission pattern of these emitters in non-scattering medium and tissue matched well with simulations. To our knowledge, this is the first report of focused spots with the size scale of a neuron soma in brain tissue formed from implantable neural probes.
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