Accession Number : ADA474527


Title :   Surface Plasmon Polariton Dependence on Metal Surface Morphology


Descriptive Note : Final rept. 30 Nov 2006-31 Jul 2007


Corporate Author : UNIVERSITY OF CENTRAL FLORIDA ORLANDO


Personal Author(s) : Peale, Robert E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a474527.pdf


Report Date : 13 Nov 2007


Pagination or Media Count : 39


Abstract : Generation and propagation of surface plasmons on nano-structured gold films was studied using optical and electron-beam techniques. Optical excitation of surface plasmons in Au-black films prepared by evaporation in moderate vacuum was observed. Initial indication of propagation of surface plasmons at visible-light frequencies over 10 nm length scales was observed. A tunable terahertz detector based on two-dimensional plasmons in a semiconductor heterostructure was designed. These results have application to the characterization of the complex permittivity of absorbing films for terahertz bolometers and to the development of a terahertz spectrometer on a chip, both of which are relevant to terahertz remote chemical and biological sensing.


Descriptors :   *DETECTORS , *ELECTRON BEAMS , *PLASMONS , METALS , OPTICAL PROPERTIES , EXCITATION , SEMICONDUCTORS , HETEROGENEITY , BOLOMETERS , EVAPORATION , SURFACE PROPERTIES , ELECTRON GAS , MORPHOLOGY , TWO DIMENSIONAL , OPTICS


Subject Categories : Particle Accelerators
      Plasma Physics and Magnetohydrodynamics
      Solid State Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE