Optical transparency of mesoporous metals

Details Optical transparency of mesoporous metals Optical transparency of mesoporous metals

2001-02-15

arxiv.org/abs/cond-mat/0102277v1

Physics

Condensed Matter

Soft Condensed Matter

9 pages in total, 3 figures To be published in Solid State Communications

Scientific paper

10.1016/S0038-1098(01)00038-2

We examine the optical properties of metals containing a periodic arrangement of nonoverlapping spherical mesopores, empty or filled with a dielectric material. We show that a slab of such a porous metal transmits light over regions of frequency determined by the dielectric constant of the cavities and the fractional volume occupied by them, with an efficiency which is many orders of magnitude higher than predicted by standard aperture theory. Also, the system absorbs light efficiently over the said regions of frequency unlike the homogeneous metal.

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