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Thermal radiation device, has radiation surface of crystalline material formed from photonic crystal with periodic structure, where exterior of crystal includes thin coating of coating material such as aluminum, oxides and thorium oxide
Thermal radiation device, has radiation surface of crystalline material formed from photonic crystal with periodic structure, where exterior of crystal includes thin coating of coating material such as aluminum, oxides and thorium oxide
The device has a radiation surface of crystalline material that is formed from a two-dimensional (2D) photonic crystal (PC) with periodic structure of its dielectric material to provide photonic band-gap property. The exterior of the crystal is provided with a thin coating (5i) of a coating material such as aluminum, oxides and thorium oxide, and the material has a small emissivity in a frequency range of the band-gap.
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