NEURAL PROBES INTEGRATED WITH OPTICAL MIXER/SPLITTER WAVEGUIDES AND MULTIPLE STIMULATION SITES

Title
NEURAL PROBES INTEGRATED WITH OPTICAL MIXER/SPLITTER WAVEGUIDES AND MULTIPLE STIMULATION SITES
Authors
임매순조일주판 우켄살 와이즈윤의식
Keywords
Neural Probe; Optical Stimulation; Optical Mixer; Optical Splitter
Issue Date
2011-01
Publisher
IEEE MEMS 2011 Conference
Citation
, 1051-1054
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.
URI
http://pubs.kist.re.kr/handle/201004/39706
Appears in Collections:
KIST Publication > Conference Paper
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