In this work, three slanted silver nanorod arrays (NRAs) with different thicknesses are fabricated using the glancing angle deposition method. Each silver NRA in the Kretschmann configuration is arranged to form a prism/NRA/air system. Attenuated total reflection occurs over the visible wavelengths and wide incident angles of both s- and p-polarization states. The extinctance is inversely proportional to the thickness of the Ag NRA. The thinnest NRA, with a thickness of 169 nm, exhibits strong extinctance of more than 80% over the visible wavelengths. The associated forward scatterings from the three NRAs are measured and compared under illumination with a laser beam with a wavelength of 632.8 nm.
This investigation presents the strategy of high-efficiency solar electricity of umbrella by TRIZ (Theory of Inventive Problem Solving) analysis. According to the combined statistics of classical and new contradiction matrix, the invention principles can be used for designing tracking irradiance of surface plane of umbrella orientations including tilted angle (θ) and azimuth angle (Ø). Three geographical sites are discussed by regions of Berlin, Taipei and Wellington located in north, near and south of tropic of cancer, respectively. The optimal design of azimuth surfaces of umbrella can be obtained by electricity gain at a fixed tilted angle.
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