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Proceedings Paper

A nanophotonic sensor for large electric current measurements
Author(s): A. K. Ghosh; D. P. Arora; P. Verma; R. C. Huck; J. Fagan
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Paper Abstract

A non-contact and low-cost nanomaterial based fiber-optic sensor is developed for measuring large values of electric currents. The magnetic field, generated by the electric current, changes the refractive index of a liquid in which nanomaterial particles are suspended. The change of refractive index is converted to a change in the intensity of light transmitted in an evanescent field based fiber optic sensor. The change in the intensity is proportional to the magnitude of the electric current and thus the current can be measured by measuring the resultant change in the intensity of light.

Paper Details

Date Published: 26 January 2009
PDF: 4 pages
Proc. SPIE 7222, Quantum Sensing and Nanophotonic Devices VI, 72221C (26 January 2009); doi: 10.1117/12.807345
Show Author Affiliations
A. K. Ghosh, Univ. of Oklahoma (United States)
D. P. Arora, Univ. of Oklahoma (United States)
P. Verma, Univ. of Oklahoma (United States)
R. C. Huck, Univ. of Oklahoma (United States)
J. Fagan, Univ. of Oklahoma (United States)

Published in SPIE Proceedings Vol. 7222:
Quantum Sensing and Nanophotonic Devices VI
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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