Transmission enhancement in an array of subwavelength slits in aluminum due to surface plasmon resonances

The coupling of light to surface plasmons through periodic subwavelength metallic structures could strongly modify the optical properties of a metal film. We demonstrate that the optical transmission through an array of subwavelength slits is as high as 80% at resonance, even though the width of eac...

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Bibliographic Details
Published inBell Labs technical journal Vol. 10; no. 3; pp. 143 - 150
Main Authors Chan, Ho Bun, Marcet, Zsolt, Carr, Dustin, Bower, John Eric, Cirelli, Ray, Ferry, Ed, Klemens, Fred P., Miner, John F., Pai, Chien-Shing, Taylor, J. Ashley
Format Journal Article
LanguageEnglish
Published Hoboken IEEE 2005
Wiley Subscription Services, Inc., A Wiley Company
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Summary:The coupling of light to surface plasmons through periodic subwavelength metallic structures could strongly modify the optical properties of a metal film. We demonstrate that the optical transmission through an array of subwavelength slits is as high as 80% at resonance, even though the width of each slit is almost 10 times smaller than the wavelength and the slits occupy only 25% of the area of the metal. Numerical calculations suggest that the field intensity is strongly enhanced near the metal surface. The field enhancement could be used for generating nonlinear optical effects and for high sensitivity detection of nanomechanical displacement.
Bibliography:istex:439FD7D2E8C32490824B1938390530ABE55A0372
ArticleID:BLTJ20109
ark:/67375/WNG-6K7K3Z8J-Q
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1089-7089
1538-7305
DOI:10.1002/bltj.20109