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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 8 — Aug. 2, 2012

Flexible optitrode for localized light delivery and electrical recording

S.-T. Lin, J. C. Wolfe, J. A. Dani, and W.-C. Shih  »View Author Affiliations


Optics Letters, Vol. 37, Issue 11, pp. 1781-1783 (2012)
http://dx.doi.org/10.1364/OL.37.001781


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Abstract

We present optitrode, a miniaturized flexible probe for integrated, localized light delivery and electrical recording. This device features an annular light guide with transparent polymer and fused silica layers surrounding a twisted-wire tetrode. We have developed a novel fabrication process, V-groove guided capillary assembly, to achieve high-precision, coaxial alignment of the various layers of the device. Optitrode with a length-to-diameter ratio 500 (5 cm long, 100 μm diameter) has been fabricated, and both the electrical and optical functions have been characterized. The prototype can deliver 11% (110 mW) of the total laser power under abrupt bending angle 25°.

© 2012 Optical Society of America

OCIS Codes
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3990) Optical devices : Micro-optical devices
(230.4685) Optical devices : Optical microelectromechanical devices

ToC Category:
Optical Devices

History
Original Manuscript: March 12, 2012
Manuscript Accepted: April 1, 2012
Published: May 16, 2012

Virtual Issues
Vol. 7, Iss. 8 Virtual Journal for Biomedical Optics

Citation
S.-T. Lin, J. C. Wolfe, J. A. Dani, and W.-C. Shih, "Flexible optitrode for localized light delivery and electrical recording," Opt. Lett. 37, 1781-1783 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-37-11-1781


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