Infrared radiative properties of submicron metallic slit arrays

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Submicron metallic slit arrays with different geometry were designed and fabricated on silicon substrates. Their infrared radiative properties (transmittance, reflectance, and absorptance) were investigated both experimentally and theoretically. The normal transmittance of three fabricated Au slit arrays was measured at wavelengths between 2 mu m and 15 mu m using a Fourier-transform infrared spectrometer. The experimental results were compared to the values calculated from the rigorous coupled-wave analysis. The applicability of the effective medium theory for modeling radiative properties was also examined. The agreement between the measurement and modeling results demonstrates the feasibility of quantitative tuning of the radiative properties by employing periodic micro/nanostructures.
Publisher
ASME-AMER SOC MECHANICAL ENG
Issue Date
2008-08
Language
English
Article Type
Article
Keywords

WIRE-GRID POLARIZER; INTERFERENCE NANOLITHOGRAPHY; PERIODIC STRUCTURES; GRATINGS; TRANSMISSION; TRANSMITTANCE; ENHANCEMENT; SURFACES; FILMS

Citation

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, v.130, no.8

ISSN
0022-1481
DOI
10.1115/1.2909614
URI
http://hdl.handle.net/10203/89389
Appears in Collection
ME-Journal Papers(저널논문)
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