Title page for etd-0623111-163158


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URN etd-0623111-163158
Author Jia-Hua Liou
Author's Email Address No Public.
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Department Electro-Optical Engineering
Year 2010
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Polarization characteristics of 1D plasmonic grating measurement and
discussion
Date of Defense 2011-05-26
Page Count 65
Keyword
  • Poincare sphere
  • birefringence
  • grating
  • surface plasmon wave
  • Abstract The birefringence of one-dimension PMMA surface gratings on a gold film substrate is investigated. The grating served as a coupler to facilitate the incoming light coupled to surface plasmon wave (SPW) which possesses high propagation wave vector. Since surface plasmon waves(SPWs) have a special dispersion relation, the birefringence Δneff (Δneff =nx-ny, where grating k-vector is along x axis) of this structure is relatively large and can be changed from positive to negative by changing the operation wavelength.
    The obtained the four Stokes parameters at 515nm and 633nm are marked on the Poincare sphere. Δneff is
    2π/7 and -π/8 at 515nm and 633nm respectively. Further, by
    changing the form factor of PMMA gratings, we found that the maximum Δneff occurred when PMMA stripe width : air gap=1:1.
    Advisory Committee
  • Ann-Kuo Chu - chair
  • Chin-Ping Yu - co-chair
  • Tsung-Hsien Lin - co-chair
  • Yu-Ju Hung - advisor
  • Files
  • etd-0623111-163158.pdf
  • indicate accessible in a year
    Date of Submission 2011-06-23

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