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osu1304532704.pdf (20.45 MB)
ETD Abstract Container
Abstract Header
Surface Plasmons Polaritons and Single Dust Particles
Author Info
Cilwa, Katherine E.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=osu1304532704
Abstract Details
Year and Degree
2011, Doctor of Philosophy, Ohio State University, Chemistry.
Abstract
Square nickel mesh perforated with micron scale holes exhibits extraordinary transmission due to propagating surface plasmon polaritions (PSPP) combined with cavity modes. Propagating surface plasmon resonances are known to disperse with the angle of incident light and such experiments yield rich information regarding the plasmonics of the material. More accurate polarized Gamma X dispersion is presented within, as well as the first polarized Gamma M dispersion of square nickel mesh. Calculation of resonance positions within these experiments predicts an effective index of refraction for the asymmetric coupled surface plasmon polaritons to have a value of n’eff = 1.043. Gamma P and Gamma Q dispersion of hexagonal mesh is presented and the coupling of asymmetric plasmonic surfaces examined. Calculations allowing interactions between PSPP states of square mesh are compared with experimental results and traditional predictions of mesh, PSPP transmission maxima; explaining variation from experimental results and traditional predictions and illustrating the polariton, or mixed state, nature of PSPPs. Lastly, scatter free infrared spectra of sixty-three individual micron scale dust particles are presented by placement of each particle in a hole of plasmonic square nickel mesh. The constituents of each particle and the process of quantification of materials is examined by use of Mie scattering, Lorentz dispersion, and Bruggeman effective medium theories. The propagation lengths for PSPP resonances on such mesh are poor (~1-2 hole-to-hole spacings), compared to smooth metal predictions or less absorbing metals, making this mesh ideal for studying individual particles. The PSPPs funnel light through the particles, but they are effectively isolated so long as the neighboring holes are empty. Saturation of absorption peaks at this scale are demonstrated.
Committee
James Coe, PhD (Advisor)
Sherwin Singer, PhD (Committee Member)
Barbara Wyslouzil, PhD (Committee Member)
Pages
354 p.
Subject Headings
Atmospheric Chemistry
;
Atmospheric Sciences
;
Chemistry
;
Condensed Matter Physics
;
Environmental Education
;
Environmental Geology
;
Environmental Health
;
Environmental Management
;
Environmental Science
;
Environmental Studies
;
Geochemistry
;
Mineralogy
;
Molecular Physics
Keywords
surface plasmon
;
surface plasmon polariton
;
dispersion
;
Mie
;
scattering
;
Lorentz
;
Bruggeman
;
micron
;
particles
;
particulate
;
PM10
;
dust
;
single particle
;
interaction
;
IR
;
infrared
;
mesh
;
hole arrays
;
extraordinary transmission
;
hexagonal
;
absorption
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Cilwa, K. E. (2011).
Surface Plasmons Polaritons and Single Dust Particles
[Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1304532704
APA Style (7th edition)
Cilwa, Katherine.
Surface Plasmons Polaritons and Single Dust Particles.
2011. Ohio State University, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=osu1304532704.
MLA Style (8th edition)
Cilwa, Katherine. "Surface Plasmons Polaritons and Single Dust Particles." Doctoral dissertation, Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1304532704
Chicago Manual of Style (17th edition)
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Document number:
osu1304532704
Download Count:
386
Copyright Info
© 2011, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.