Tungsten inverse opals: The influence of absorption on the photonic band structure in the visible spectral region

von Freymann, George; John, Sajeev; Schulz-Dobrick, Martin; Vekris, Evangellos; Tétreault, Nicolas; Sean Wong, Nicolas; Kitaev, Vladimir; Ozin, Geoffrey A.
January 2004
Applied Physics Letters;1/12/2004, Vol. 84 Issue 2, p224
Academic Journal
We report on the fabrication and characterization of tungsten inverse opals for the visible and near-infrared spectral region. The crucial influence of the strong absorption in this spectral region is experimentally investigated by means of a gradient deposition technique and characterization with reflectance and transmittance spectroscopy. With increasing metal infiltration, we observe the breakdown of the photonic band structure, resulting first in a sphere-cavity-like behavior and finally in a behavior similar to that of a periodically structured metal surface. © 2004 American Institute of Physics.


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