fig7

Figure 7. Neuropixels Opto^[37]: (A) Design of the prototype Neuropixels Opto probe; (B) Top view of light propagation from a red and blue emitter; (C) Neuropixels Opto to drive localized network effects. (A-C) are reprinted with permission from Ref.^[37], Copyright © 2026 The Author(s). Nanophotonic phased arrays probe^[71]: (D) Foundry-fabricated neural probes with single-lobe beam-steering OPA; (E) Measured top-down intensity beam profiles in fixed tissue; (F) Demonstration of optogenetic stimulation and electrophysiological recording. (D-F) are reprinted with permission from Ref.^[71], Copyright © 2024 The Author(s). Light-sheet probes^[70]: (G) Optical micrographs of probes; (H) Conceptual illustration of the nanophotonic neural probe system; (I) Top-down view of the low-divergence beam and the light sheet beam propagating. (G-I) are reprinted with permission from Ref.^[70], Copyright © 2025 The Author(s). OPA: Optical phased-array; CMOS: complementary metal–oxide–semiconductor; PXI: PCI eXtensions for instrumentation; PC: personal computer; PCB: printed circuit board.