Subdiffraction Focusing Enabled by a Fano Resonance

Simple item page
dc.contributor.authorChen, Shuwen
dc.contributor.authorJin, Shilong
dc.contributor.authorGordon, Reuven
dc.date.accessioned2016-04-22T20:49:16Z
dc.date.available2016-04-22T20:49:16Z
dc.date.copyright2014en_US
dc.date.issued2014-08-01
dc.description.abstractRadiationless electromagnetic interference (REI) has been used to achieve focusing below Abbe’s diffraction limit. Here, we demonstrate an approach to REI that uses the Fano resonance of subwavelength slits to achieve subdiffraction focusing. Two main features of the Fano resonance are critical: (1) The Fano resonance suppresses radiation by destructive interference, thereby allowing for REI, and (2) the Fano resonance creates a resonant field enhancement allowing one to overcome evanescent decay, which is different from past approaches to REI. An analytic theory is introduced to explain these results. While the analytic theory is formulated for a perfect electric conductor, comprehensive numerical simulations show the applicability in the visible regime, where losses and plasmonic effects play a role.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe authors acknowledge funding from the NSERC Strategic Network Grant Program.en_US
dc.identifier.citationChen, S., Jin, S. & Gordon, R. (2014). Subdiffraction focusing enabled by a fano resonance. Physical Review X, 4(031021), 1-8.en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevX.4.031021
dc.identifier.urihttp://hdl.handle.net/1828/7167
dc.language.isoenen_US
dc.publisherPhysical Review Xen_US
dc.rightsAttribution 2.5 Canada*
dc.rights.urihttp://creativecommons.org/licenses/by/2.5/ca/*
dc.subjectNanophysics
dc.subjectOptics
dc.subjectPlasmonics
dc.subject.departmentDepartment of Electrical and Computer Engineering
dc.titleSubdiffraction Focusing Enabled by a Fano Resonanceen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Chen_Shuwen_PhysRevX_2015.pdf
Size:
422.6 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.74 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Faculty and Staff Publications
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.