Neural probes integrated with optical mixer/splitter waveguides and multiple stimulation sites

Maesoon Im, Il Joo Cho, Fan Wu, Kensall D. Wise, Euisik Yoon

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

27 Citations (Scopus)

Abstract

This paper reports new neural probe schemes incorporating various optical waveguides for optogenetic applications. A photodefinable polymer (SU-8) has been patterned to form optical mixer and splitter waveguides for advanced optical functions with multiple light sources and easy delivery of light to multiple shanks, respectively. Also, multiple stimulation sites have been implemented by step-wise patterning in a single waveguide. In addition to SU-8 waveguides, iridium electrodes have been integrated for recording of neural signals from optically stimulated neurons with light of specific wavelengths. Single mode optical fibers have been coupled in grooves etched in the probe body. We have successfully demonstrated transmissions of blue light, 473 nm in wavelength, through the waveguides that are integrated on the fabricated devices.

Original languageEnglish
Title of host publication2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011
Pages1051-1054
Number of pages4
DOIs
Publication statusPublished - 2011
Event24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011 - Cancun, Mexico
Duration: 2011 Jan 232011 Jan 27

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Other

Other24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011
CountryMexico
CityCancun
Period11/1/2311/1/27

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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