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Sensitive label-free and compact biosensor based on concentric silicon-on-insulator microring resonators
KTH, Skolan för informations- och kommunikationsteknik (ICT), Mikroelektronik och tillämpad fysik, MAP.
Vise andre og tillknytning
2009 (engelsk)Inngår i: Applied Optics, ISSN 1559-128X, E-ISSN 2155-3165, Vol. 48, nr 25, s. F90-F94Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We propose an ultracompact parallel label-free biosensor based on concentric silicon-on-insulator microring resonators. Our numerical studies show that the proposed biosensor offers higher sensitivity and a larger detection area than conventional single-ring-based sensors. We analyze the detection sensitivity of the DNA hybridization by immobilizing the probe on top of the double concentric ring resonators and in the ring-ring air gap. For a concentric double-ring system with an area of 27: 646 mu m(2), the bulk detection sensitivity is 683 nm RIU-1. The sensitive uniformity of the system related to the optical field distribution is also studied.

sted, utgiver, år, opplag, sider
2009. Vol. 48, nr 25, s. F90-F94
Emneord [en]
SENSOR, INTERFEROMETER, FILTERS
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-30677DOI: 10.1364/AO.48.000F90ISI: 000270117200016Scopus ID: 2-s2.0-70249143946OAI: oai:DiVA.org:kth-30677DiVA, id: diva2:403029
Merknad
QC 20110310 Asia Optical Fiber and Optoelectronic Exposition and Conference 2008, Shanghai, PEOPLES R CHINA, OCT 30-NOV 02, 2008Tilgjengelig fra: 2011-03-10 Laget: 2011-03-04 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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Totalt: 66 treff
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