학술논문

Dual-wavelength neural probe for simultaneous opto-stimulation and recording fabricated in a monolithically integrated CMOS/photonics technology platform
Document Type
Conference
Source
2023 International Electron Devices Meeting (IEDM) Electron Devices Meeting (IEDM), 2023 International. :1-4 Dec, 2023
Subject
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Stimulated emission
Optical switches
Optical recording
Optical sensors
Optical modulation
Probes
Photonics
Language
ISSN
2156-017X
Abstract
We present the development of a monolithically integrated CMOS and photonics platform, capable of supporting passive and active visible photonics with thermooptic switches. This platform is co-integrated with a 130-nm SOI-based 6-level Al-BEOL, enabling a range of bi-modal opto-electronic sensor applications. Through this platform, we demonstrate an implantable CMOS-based neural probe that integrates a high-density array of 960 selectable electrodes and 384 recording channels, along with 14 programmable optical emission sites for two visible wavelengths: 450 and 638 nm. The probe offers the neuroscience community a new technique for cell/circuit-specific activity and neural modulation monitoring through optogenetics-based optical tagging.