TY - GEN
T1 - Fiberless multicolor optoelectrodes using Injection Laser Diodes and Gradient-index lens coupled optical waveguides
AU - Kampasi, K.
AU - Seymour, J.
AU - Na, K.
AU - Wise, K. D.
AU - Yoon, E.
N1 - Publisher Copyright:
© 2015 IEEE.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2015/8/5
Y1 - 2015/8/5
N2 - We present an integrated optoelectrode that can deliver multicolor light from a waveguide coupled to an optical mixer. Such a device can provide spatial precision and scalability needed to enable independent activation and silencing of local neural circuits, allowing study of brain activities such as memory consolidation networks in the hippocampus. We have demonstrated successful implementation of fiber-less optoelectrodes in a highly compact form by achieving efficient end-fire coupling between a side-emitting injection laser diode (ILD) and a dielectric channel waveguide via a Gradient-index (GRIN) lens. Total optical efficiency achieved for 405nm and 635nm wavelengths through an optical mixer was 12.2% and 5.4%, respectively. This approach also provides robust thermal packaging by efficiently managing thermal power loss of ILDs.
AB - We present an integrated optoelectrode that can deliver multicolor light from a waveguide coupled to an optical mixer. Such a device can provide spatial precision and scalability needed to enable independent activation and silencing of local neural circuits, allowing study of brain activities such as memory consolidation networks in the hippocampus. We have demonstrated successful implementation of fiber-less optoelectrodes in a highly compact form by achieving efficient end-fire coupling between a side-emitting injection laser diode (ILD) and a dielectric channel waveguide via a Gradient-index (GRIN) lens. Total optical efficiency achieved for 405nm and 635nm wavelengths through an optical mixer was 12.2% and 5.4%, respectively. This approach also provides robust thermal packaging by efficiently managing thermal power loss of ILDs.
UR - http://www.scopus.com/inward/record.url?scp=84955445966&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955445966&partnerID=8YFLogxK
U2 - 10.1109/TRANSDUCERS.2015.7180914
DO - 10.1109/TRANSDUCERS.2015.7180914
M3 - Conference contribution
AN - SCOPUS:84955445966
T3 - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
SP - 273
EP - 276
BT - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Y2 - 21 June 2015 through 25 June 2015
ER -