Optical multilayers for LED-based surface plasmon resonance sensors
Applied Optics, Vol. 45, Issue 16, pp. 3752-3759 (2006)
http://dx.doi.org/10.1364/AO.45.003752
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Abstract
We address a structure for surface plasmon resonance (SPR) sensing supporting a symmetric bound surface plasmon, which results in a SPR feature narrower by a factor of 2 compared with that for the conventional configuration. We demonstrate that it enables a low-cost and low-power-consumption LED to be used as a polychromatic light source, which leads to a decrease in the sensor cost and an increase in the sensor miniaturization potential. Further, we show that these advancements are not at the expense of sensor performance in terms of its sensitivity and resolution. We show that the sensor can be designed to have similar sensitivity and even better resolution compared with those for a conventional configuration.
© 2006 Optical Society of America
OCIS Codes
(240.6490) Optics at surfaces : Spectroscopy, surface
(240.6680) Optics at surfaces : Surface plasmons
(260.5740) Physical optics : Resonance
(300.6490) Spectroscopy : Spectroscopy, surface
(310.2790) Thin films : Guided waves
History
Original Manuscript: September 7, 2005
Revised Manuscript: December 1, 2005
Manuscript Accepted: December 1, 2005
Citation
Radan Slavík and Jiří Homola, "Optical multilayers for LED-based surface plasmon resonance sensors," Appl. Opt. 45, 3752-3759 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-16-3752
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