Journal
APPLIED OPTICS
Volume 46, Issue 23, Pages 5703-5708Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.46.005703
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Funding
- National Research Foundation of Korea [R15-2004-024-01002-0, R11-2000-075-01001-0, 과C6A1606] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We investigated grating-coupled transmission-type surface plasmon resonance (SPR) for sensing applications. In the transmission-type SPR structure, propagating surface plasmons are outcoupled to radiation modes by dielectric and metallic gratings on a metal film. The results calculated in air and water suggest that the proposed structures present extremely linear sensing characteristics. In terms of a figure of merit, a metallic grating-based structure performs 5.4 and 3.7 times better than that of a dielectric grating in air and water, respectively. (C) 2007 Optical Society of America.
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