TY - GEN
T1 - Neural probes integrated with optical mixer/splitter waveguides and multiple stimulation sites
AU - Im, Maesoon
AU - Cho, Il Joo
AU - Wu, Fan
AU - Wise, Kensall D.
AU - Yoon, Euisik
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
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U2 - 10.1109/MEMSYS.2011.5734609
DO - 10.1109/MEMSYS.2011.5734609
M3 - Conference contribution
AN - SCOPUS:79953797163
SN - 9781424496327
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 1051
EP - 1054
BT - 2011 IEEE 24th International Conference on Micro Electro Mechanical Systems, MEMS 2011
T2 - 24th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2011
Y2 - 23 January 2011 through 27 January 2011
ER -