TY - GEN
T1 - Investigation of metallic nanowire-based localized surface plasmon resonance optical biosensors using extinction spectra
AU - Byun, Kyung Min
AU - Kim, Sung June
AU - Kim, Donghyun
PY - 2006
Y1 - 2006
N2 - In this study, we investigate the impact of the cross sectional profile of an array of metallic nanowires on the feasibility of a localized surface plasmons resonance (LSPR) biosensor. Calculations were performed using rigorous coupled wave analysis with an emphasis on the extinction properties of the LSPR structure. It was confirmed that the resonance spectrum strongly depends on the nanowire period and profile. Our numerical results indicate that the nanowire structure, particularly that of a T-profile, delivers extremely linear sensing performance over a wide range of target refractive index with much enhanced sensitivity. The extinction-based LSPR structure also involves relatively large dimension and thus is expected to provide a feasible biosensor using current semiconductor technology.
AB - In this study, we investigate the impact of the cross sectional profile of an array of metallic nanowires on the feasibility of a localized surface plasmons resonance (LSPR) biosensor. Calculations were performed using rigorous coupled wave analysis with an emphasis on the extinction properties of the LSPR structure. It was confirmed that the resonance spectrum strongly depends on the nanowire period and profile. Our numerical results indicate that the nanowire structure, particularly that of a T-profile, delivers extremely linear sensing performance over a wide range of target refractive index with much enhanced sensitivity. The extinction-based LSPR structure also involves relatively large dimension and thus is expected to provide a feasible biosensor using current semiconductor technology.
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U2 - 10.1117/12.644105
DO - 10.1117/12.644105
M3 - Conference contribution
AN - SCOPUS:33745215145
SN - 0819461415
SN - 9780819461414
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Plasmonics in Biology and Medicine III
T2 - Plasmonics in Biology and Medicine III
Y2 - 23 January 2006 through 24 January 2006
ER -