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Impact of surface roughness on the sensitivity enhancement of a nanowire-based surface plasmon resonance biosensor
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Byun, Kyung Min | - |
dc.contributor.author | Yoon, Soon Joon | - |
dc.contributor.author | Kim, Donghyun | - |
dc.contributor.author | Kim, Sung June | - |
dc.date.accessioned | 2009-08-25T05:05:08Z | - |
dc.date.available | 2009-08-25T05:05:08Z | - |
dc.date.issued | 2007-01-20 | - |
dc.identifier.citation | SPIE Photonics West, San Jose, California USA, 20-25 January 2007 | en |
dc.identifier.uri | https://hdl.handle.net/10371/7727 | - |
dc.description.abstract | In this study, we investigated the impact of surface roughness on the sensitivity of conventional and nanowire-based surface plasmon resonance (SPR) biosensors. The theoretical research was conducted using rigorous coupled-wave analysis with Gaussian surface profiles of gold films determined by atomic force microscopy. The results suggest that, when surface roughness ranges 1 nm, the sensitivity of a conventional SPR system is not significantly affected regardless of the correlation length. For a nanowire-based SPR biosensor, however, we found that the sensitivity degrades substantially with a decreasing correlation length. Particularly, at a correlation length smaller than 100 nm, random rough surface may induce destructive coupling between excited localized surface plasmons, which can lead to prominent reduction of sensitivity enhancement. | en |
dc.description.sponsorship | This work was supported by the SRC/ERC program of MOST/KOSEF (R11-2000-075-01001-1) and by Nano Artificial Vision Research Center supported by Korea Health 21 R&D Project (MOHW Grant No.A050251). D. Kim acknowledges the support by KOSEF through National Core Research Center for Nanomedical Technology (R15-2004-024-00000-0). | en |
dc.language.iso | en | - |
dc.publisher | International Society for Optical Engineering (SPIE) | en |
dc.subject | Localized surface plasmon resonance | en |
dc.subject | biosensors | en |
dc.subject | metallic nanowires | en |
dc.subject | surface roughness | en |
dc.subject | sensitivity enhancement | en |
dc.title | Impact of surface roughness on the sensitivity enhancement of a nanowire-based surface plasmon resonance biosensor | en |
dc.type | Conference Paper | en |
dc.contributor.AlternativeAuthor | 변경민 | - |
dc.contributor.AlternativeAuthor | 윤순준 | - |
dc.contributor.AlternativeAuthor | 김동현 | - |
dc.contributor.AlternativeAuthor | 김성준 | - |
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