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Demonstration of long-range surface plasmon-polariton waveguide sensors with asymmetric double-electrode structures
- Authors
- Joo, Yang Hyun; Song, Seok Ho; Magnusson, Robert
- Issue Date
- Nov-2010
- Publisher
- American Institute of Physics
- Citation
- Applied Physics Letters, v.97, no.20, pp 1 - 4
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Applied Physics Letters
- Volume
- 97
- Number
- 20
- Start Page
- 1
- End Page
- 4
- ISSN
- 0003-6951
1077-3118
- Abstract
- We demonstrate a long-range surface plasmon-polaritons (LRSPP) refractive-index sensor using an asymmetric double-electrode LRSPP waveguide configuration. The LRSPP sensor is inherently self-referencing by virtue of two Bragg wavelengths in the transmission spectrum generated by a Bragg grating. The measured sensitivity is about 130 nm/RIU and 27 pm/K, which means a sensing resolution of similar to 10(-6) RIU and a temperature determination with an inaccuracy of 0.04 K under measurement accuracy of the Bragg wavelength of 1 pm. The sensor dimensions of 1.95 mm in total length and submicrometer in fluidic-channel thickness may be desirable for highly integrated sensors based on LRSPP.
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Related Researcher
- Song, Seok Ho
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)