4.7 Article

Small footprint optoelectrodes using ring resonators for passive light localization

期刊

MICROSYSTEMS & NANOENGINEERING
卷 7, 期 1, 页码 -

出版社

SPRINGERNATURE
DOI: 10.1038/s41378-021-00263-0

关键词

-

资金

  1. Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]

向作者/读者索取更多资源

The combination of electrophysiology and optogenetics has led to the development of a highly scalable neural probe that overcomes spatial limitations of nanophotonic circuits, allowing for a significant increase in sensor density. This advancement was achieved through a novel strategy of coupling only one waveguide to multiple optical ring resonators as passive nanophotonic switches.
The combination of electrophysiology and optogenetics enables the exploration of how the brain operates down to a single neuron and its network activity. Neural probes are in vivo invasive devices that integrate sensors and stimulation sites to record and manipulate neuronal activity with high spatiotemporal resolution. State-of-the-art probes are limited by tradeoffs involving their lateral dimension, number of sensors, and ability to access independent stimulation sites. Here, we realize a highly scalable probe that features three-dimensional integration of small-footprint arrays of sensors and nanophotonic circuits to scale the density of sensors per cross-section by one order of magnitude with respect to state-of-the-art devices. For the first time, we overcome the spatial limit of the nanophotonic circuit by coupling only one waveguide to numerous optical ring resonators as passive nanophotonic switches. With this strategy, we achieve accurate on-demand light localization while avoiding spatially demanding bundles of waveguides and demonstrate the feasibility with a proof-of-concept device and its scalability towards high-resolution and low-damage neural optoelectrodes.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据