Spectral reflectance of the close-packed structure of silica microspheres

Masahiro Kihara, Koji Miyazaki, Hiroshi Tsukamoto

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1 Citation (Scopus)


The spectral reflectance of microperiodic structures of silica microspheres was investigated. The electromagnetic dispersion relation in a close-packed structure of silica spheres is computed. The three-dimensional close-packed structures, self-assembled with silica microspheres (2 μm and 3 μm), were rapidly fabricated over a large area. Specular reflectance was measured by using Fourier transform-infrared spectroscopy (FT-IR). The experimental results were evaluated by a modification of Bragg's law, taking into account Snell's law of refraction, and calculations of multiple reflections and the scalar wave approximation method. In addition, to expand the reflection wavelength range, a double-layered sample was fabricated, and its spectral reflectance was determined.

Original languageEnglish
Pages (from-to)2136-2148
Number of pages13
JournalInternational Journal of Thermophysics
Issue number6
Publication statusPublished - Dec 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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