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Article: Extraordinary light transmission through opaque thin metal film with subwavelength holes blocked by metal disks

TitleExtraordinary light transmission through opaque thin metal film with subwavelength holes blocked by metal disks
Authors
KeywordsMetallic Films
Metals
Transparency
Issue Date2011
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.org
Citation
Optics Express, 2011, v. 19 n. 21, p. 21098-21108 How to Cite?
AbstractWe observed that when subwavelength-sized holes in an optically opaque metal film are completely covered by opaque metal disks larger than the holes, the light transmission through the holes is not reduced, but rather enhanced. Particularly we report (i) the observation of light transmission through the holes blocked by the metal disks up to 70% larger than the unblocked holes; (ii) the observation of tuning the light transmission by varying the coupling strength between the blocking disks and the hole array, or by changing the size of the disks and holes; (iii) the observation and simulation that the metal disk blocker can improve light coupling from free space to a subwavelength hole; and (iv) the simulation that shows the light transmission through subwavelength holes can be enhanced, even though the gap between the disk and the metal film is partially connected with a metal. We believe these finding should have broad and significant impacts and applications to optical systems in many fields. © 2010 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/145468
ISSN
2015 Impact Factor: 3.148
2015 SCImago Journal Rankings: 2.186
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, WDen_HK
dc.contributor.authorHu, Jen_HK
dc.contributor.authorChou, SYen_HK
dc.date.accessioned2012-02-23T12:10:51Z-
dc.date.available2012-02-23T12:10:51Z-
dc.date.issued2011en_HK
dc.identifier.citationOptics Express, 2011, v. 19 n. 21, p. 21098-21108en_HK
dc.identifier.issn1094-4087en_HK
dc.identifier.urihttp://hdl.handle.net/10722/145468-
dc.description.abstractWe observed that when subwavelength-sized holes in an optically opaque metal film are completely covered by opaque metal disks larger than the holes, the light transmission through the holes is not reduced, but rather enhanced. Particularly we report (i) the observation of light transmission through the holes blocked by the metal disks up to 70% larger than the unblocked holes; (ii) the observation of tuning the light transmission by varying the coupling strength between the blocking disks and the hole array, or by changing the size of the disks and holes; (iii) the observation and simulation that the metal disk blocker can improve light coupling from free space to a subwavelength hole; and (iv) the simulation that shows the light transmission through subwavelength holes can be enhanced, even though the gap between the disk and the metal film is partially connected with a metal. We believe these finding should have broad and significant impacts and applications to optical systems in many fields. © 2010 Optical Society of America.en_HK
dc.languageengen_US
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.orgen_HK
dc.relation.ispartofOptics Expressen_HK
dc.subjectMetallic Filmsen_US
dc.subjectMetalsen_US
dc.subjectTransparencyen_US
dc.titleExtraordinary light transmission through opaque thin metal film with subwavelength holes blocked by metal disksen_HK
dc.typeArticleen_HK
dc.identifier.emailLi, WD:liwd@hku.hken_HK
dc.identifier.authorityLi, WD=rp01581en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1364/OE.19.021098en_HK
dc.identifier.pmid21997118-
dc.identifier.scopuseid_2-s2.0-80053969744en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80053969744&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue21en_HK
dc.identifier.spage21098en_HK
dc.identifier.epage21108en_HK
dc.identifier.eissn1094-4087-
dc.identifier.isiWOS:000296065700131-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, WD=35181575900en_HK
dc.identifier.scopusauthoridHu, J=37034162800en_HK
dc.identifier.scopusauthoridChou, SY=7401538612en_HK
dc.identifier.citeulike10382044-

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