The first neural probe integrated with light source (blue laser diode) for optical stimulation and electrical recording

Hyungdal Park, Hyun Joon Shin, Il Joo Cho, Eui Sung Yoon, Jun Kyo Francis Suh, Maesoon Im, Euisik Yoon, Yong Jun Kim, Jinseok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

In this paper, we report a neural probe which can selectively stimulate target neurons optically through Si wet etched mirror surface and record extracellular neural signals in iridium oxide tetrodes. Consequently, the proposed approach provides to improve directional problem and achieve at least 150/m gap distance between stimulation and recording sites by wet etched mirror surface in V-groove. Also, we developed light source, blue laser diode (OSRAM Blue Laser Diode-PL 450), integration through simple jig for one-touch butt-coupling. Furthermore, optical power and impedance of iridium oxide tetrodes were measured as 200W on 5mW from LD and 206.5k at 1kHz and we demonstrated insertion test of probe in 0.5% agarose-gel successfully. We have successfully transmitted a light of 450nm to optical fiber through the integrated LD using by butt-coupling method.

Original languageEnglish
Title of host publication33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
Pages2961-2964
Number of pages4
DOIs
Publication statusPublished - 2011 Dec 26
Event33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, United States
Duration: 2011 Aug 302011 Sep 3

Other

Other33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
CountryUnited States
CityBoston, MA
Period11/8/3011/9/3

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All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Park, H., Shin, H. J., Cho, I. J., Yoon, E. S., Suh, J. K. F., Im, M., Yoon, E., Kim, Y. J., & Kim, J. (2011). The first neural probe integrated with light source (blue laser diode) for optical stimulation and electrical recording. In 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 (pp. 2961-2964). [6090813] https://doi.org/10.1109/IEMBS.2011.6090813