Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Highly confined optical modes in nanoscale metal-dielectric multilayers Ivan Avrutsky,1,
 

Summary: Highly confined optical modes in nanoscale metal-dielectric multilayers
Ivan Avrutsky,1,
* Ildar Salakhutdinov,1 Justin Elser,2 and Viktor Podolskiy2
1Department of Electrical and Computer Engineering, Wayne State University, Detroit, Michigan 48202, USA
2Department of Physics, Oregon State University, Corvallis, Oregon 97331, USA
Received 1 March 2007; published 7 June 2007
We show that a stack of metal-dielectric nanolayers, in addition to the long- and short-range plasmon
polaritons, guides also an entire family of modes strongly confined within the multilayer--the bulk plasmon
polariton modes. We propose a classification scheme that reflects specific properties of these modes. We report
experimental verification of the bulk modes by measuring modal indices in a structure made of three pairs of
silica 29 nm /gold 25 nm layers.
DOI: 10.1103/PhysRevB.75.241402 PACS number s : 73.20.Mf, 42.25.Bs, 42.82.Et, 73.21.Ac
Nanoscale confinement of light is of great interest for ap-
plications in sensing, imaging, all-optical signal processing,
and computing. Subwavelength confinement attributed to
gap plasmon polaritons GPPs has been demonstrated in a
thin dielectric layer surrounded by metallic claddings.1 Here
we present another solution to subdiffraction confinement of
light and show that a stack of metal-dielectric nanolayers
guides a family of modes strongly confined within the

  

Source: Avrutsky, Ivan - Department of Electrical and Computer Engineering, Wayne State University

 

Collections: Engineering