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Proceedings Paper

Flexible optitrode for localized light delivery and electrical recording
Author(s): Szu-Te Lin; Mufaddal Gheewala; John A. Dani; John C. Wolfe; Wei-Chuan Shih
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Paper Abstract

We present two innovative design concepts of integrated flexible neural probe for deep brain optical stimulation and electrical recording, termed as “optitrode”. In the first one, a hybrid annular light pipe is built around a tetrode by V-groove guided capillary assembly (VGCA), by which a single or multiple microwires can be packaged inside the light pipe with high precision. In the second design, thin-film microelectrodes and wires are patterned on an optical fiber by proximity ion beam lithography. These designs address a major limitation on the length-to-diameter ratio, achieving > 500 (>5 cm long, <100 μm diameter). The highly flexible nature of optitrode could be critical for minimally-invasive implantation as well as long-term operation.

Paper Details

Date Published: 8 March 2013
PDF: 6 pages
Proc. SPIE 8565, Photonic Therapeutics and Diagnostics IX, 85655Y (8 March 2013); doi: 10.1117/12.2005707
Show Author Affiliations
Szu-Te Lin, Univ. of Houston (United States)
Mufaddal Gheewala, Univ. of Houston (United States)
John A. Dani, Baylor College of Medicine (United States)
John C. Wolfe, Univ. of Houston (United States)
Wei-Chuan Shih, Univ. of Houston (United States)


Published in SPIE Proceedings Vol. 8565:
Photonic Therapeutics and Diagnostics IX
Andreas Mandelis; Brian Jet-Fei Wong; Anita Mahadevan-Jansen; Henry Hirschberg; Hyun Wook Kang; Nikiforos Kollias; Melissa J. Suter; Kenton W. Gregory; Guillermo J. Tearney; Stephen Lam; Bernard Choi; Steen J. Madsen; Bodo E. Knudsen; E. Duco Jansen; Justus F. Ilgner; Haishan Zeng; Matthew Brenner; Laura Marcu, Editor(s)

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