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Article: Fluorescence enhancement by a two-dimensional dielectric annular Bragg resonant cavity

TitleFluorescence enhancement by a two-dimensional dielectric annular Bragg resonant cavity
Authors
Issue Date2010
Citation
Optics Express, 2010, v. 18, n. 24, p. 25029-25034 How to Cite?
AbstractWe show that photons can be efficiently extracted from fluorescent molecules, utilizing the strongly enhanced local field of a two-dimensional dielectric annular Bragg resonant cavity. Due to the diffraction and constructive interference together with the annular focusing, the periodic ring structure converts the normal incident light into planar guided modes and forms a hot spot at the center of the structure. Theoretically, the field can be enhanced more than 40 times, which leads to the averaged 20-fold enhancement of the fluorescence signal observed in experiments. Compared with fluorescence enhancement by plasmonic structures, this dielectric approach does not suffer from pronounced quenching that often occurs near metallic structures. These results not only can be applied as ultrasensitive sensors for various biological systems, but also have broad potential applications, such as optical trapping and fluorescent microscopy. © 2010 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/257043
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Yongmin-
dc.contributor.authorWang, Sh ENGL-
dc.contributor.authorPark, Yong Shik-
dc.contributor.authorYin, Xiaobo-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:58:40Z-
dc.date.available2018-07-24T08:58:40Z-
dc.date.issued2010-
dc.identifier.citationOptics Express, 2010, v. 18, n. 24, p. 25029-25034-
dc.identifier.urihttp://hdl.handle.net/10722/257043-
dc.description.abstractWe show that photons can be efficiently extracted from fluorescent molecules, utilizing the strongly enhanced local field of a two-dimensional dielectric annular Bragg resonant cavity. Due to the diffraction and constructive interference together with the annular focusing, the periodic ring structure converts the normal incident light into planar guided modes and forms a hot spot at the center of the structure. Theoretically, the field can be enhanced more than 40 times, which leads to the averaged 20-fold enhancement of the fluorescence signal observed in experiments. Compared with fluorescence enhancement by plasmonic structures, this dielectric approach does not suffer from pronounced quenching that often occurs near metallic structures. These results not only can be applied as ultrasensitive sensors for various biological systems, but also have broad potential applications, such as optical trapping and fluorescent microscopy. © 2010 Optical Society of America.-
dc.languageeng-
dc.relation.ispartofOptics Express-
dc.titleFluorescence enhancement by a two-dimensional dielectric annular Bragg resonant cavity-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1364/OE.18.025029-
dc.identifier.scopuseid_2-s2.0-78649707316-
dc.identifier.volume18-
dc.identifier.issue24-
dc.identifier.spage25029-
dc.identifier.epage25034-
dc.identifier.eissn1094-4087-
dc.identifier.isiWOS:000285586800096-

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