Recovery of Lost Photons in Plasmon-Mediated Transmission Through Continuous Metal Film

The plasmon-mediated transmission across a subwavelength-undulated, nanometer-thick continuous metal film embedded in a polymer exhibits an, as yet, unexplained loss, reducing the resonant transmission to half its theoretical value, precluding practical applications of this interesting spatially res...

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Bibliographic Details
Published in:Plasmonics (Norwell, Mass.) Mass.), 2013-06, Vol.8 (2), p.949-954
Main Authors: Tonchev, Svetlen, Parriaux, Olivier
Format: Article
Language:English
Subjects:
Biochemistry
Biological and Medical Physics
Biophysics
Biotechnology
Chemistry
Chemistry and Materials Science
Metal films
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology
Nonuniformity
Optics
Photons
Physics
Plasmonics
Recovery
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Summary:The plasmon-mediated transmission across a subwavelength-undulated, nanometer-thick continuous metal film embedded in a polymer exhibits an, as yet, unexplained loss, reducing the resonant transmission to half its theoretical value, precluding practical applications of this interesting spatially resolved polarization- and wavelength-selective effect. Slow chemical dissolution of the surrounding polymer while measuring the transmission spectrum under floating conditions reveals near complete recovery of the missing photons. The excess losses originate in nanoclusters of overheated polymer spots at the metal interface giving rise to index and geometrical nonuniformities where the mediating plasmon modes have their field maximum.
ISSN:1557-1955
1557-1963
DOI:10.1007/s11468-013-9495-0