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Optical electrical current sensor utilizing a graphene-microfiber-integrated coil resonator.
- Source :
-
Applied Physics Letters . 8/3/2015, Vol. 107 Issue 5, p1-4. 4p. 1 Diagram, 3 Graphs. - Publication Year :
- 2015
-
Abstract
- A graphene-based electrical current sensor is proposed utilizing a microfiber coil resonator. Monolayer graphene sheet with a large sheet resistance is transferred onto the surface of a glass capillary rod. A microfiber is spirally wrapped around the graphene sheet to form a coil resonator. Heat generated from electrical current shifts the resonant wavelength because of the thermal effect in the microfiber resonator. The sensor exhibits a very good performance with a high sensitivity of 67.297 μm/A², which is two orders of magnitude higher than that reported earlier. Our results show that microfiber-graphene-integrated devices have great potential for miniature and highly sensitive fiber sensors for monitoring electrical current. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 107
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 108816518
- Full Text :
- https://doi.org/10.1063/1.4928247