Document Detail

Nonresonant Broadband Funneling of Light via Ultrasubwavelength Channels.
MedLine Citation:
PMID:  22107385     Owner:  NLM     Status:  In-Data-Review    
Enhancing and funneling light efficiently through deep subwavelength apertures is essential in harnessing light-matter interaction. Thus far, this has been accomplished resonantly, by exciting the structural surface plasmons of perforated nanostructured metal films, a phenomenon known as extraordinary optical transmission. Here, we present a new paradigm structure which possesses all the capabilities of extraordinary optical transmission platforms, yet operates nonresonantly on a distinctly different mechanism. Our proposed platform demonstrates efficient ultrabroadband funneling of optical power confined in an area as small as ∼(λ/500)^{2}, where optical fields are enhanced, thus exhibiting functional possibilities beyond resonant platforms. We analyze the nonresonant mechanism underpinning such a phenomenon with a simple quasistatic picture, which shows excellent agreement with our numerical simulations.
G Subramania; S Foteinopoulou; I Brener
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Publication Detail:
Type:  Journal Article     Date:  2011-10-13
Journal Detail:
Title:  Physical review letters     Volume:  107     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-11-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  163902     Citation Subset:  IM    
Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA and Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, New Mexico 87131, USA.
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