Profile effect on the feasibility of extinction-based localized surface plasmon resonance biosensors with metallic nanowires
Applied Optics, Vol. 45, Issue 14, pp. 3382-3389 (2006)
http://dx.doi.org/10.1364/AO.45.003382
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Abstract
We investigate the effect of the cross-sectional profile of an array of metallic nanowires on the feasibility of a localized surface plasmon resonance (LSPR) biosensor. Calculations were performed using rigorous coupled-wave analysis with an emphasis on the extinction properties of the LSPR structure. The results indicate that the nanowire structure, particularly that of a T-profile, delivers an extremely linear sensing performance over a wide range of the target refractive index with much enhanced sensitivity. The extinction-based LSPR structure also involves a relatively large dimension and thus is expected to provide a feasible biosensor using current semiconductor technology.
© 2006 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.6010) Integrated optics : Sensors
(240.6680) Optics at surfaces : Surface plasmons
History
Original Manuscript: September 6, 2005
Revised Manuscript: December 9, 2005
Manuscript Accepted: December 12, 2005
Virtual Issues
Vol. 1, Iss. 6 Virtual Journal for Biomedical Optics
Citation
Kyung Min Byun, Sung June Kim, and Donghyun Kim, "Profile effect on the feasibility of extinction-based localized surface plasmon resonance biosensors with metallic nanowires," Appl. Opt. 45, 3382-3389 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-45-14-3382
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