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Localization of electromagnetic waves in three-dimensional fractal cavities.
- Source :
-
Physical review letters [Phys Rev Lett] 2004 Mar 05; Vol. 92 (9), pp. 093902. Date of Electronic Publication: 2004 Mar 04. - Publication Year :
- 2004
-
Abstract
- Three-dimensional fractals called the Menger sponge, with a fractal dimension D=log(20/log(3, were fabricated from epoxy resin by stereolithography. Clear attenuation of both reflection and transmission intensity was observed at 12.8 GHz for a cubic specimen with an edge size of 27 mm that was constructed up to the third stage of the self-similar patterns. The electromagnetic field was found to be confined in the central part of the specimen at this frequency. The localization is not caused by the presence of a photonic band gap as in photonic crystals but should be attributed to a singular photon density of states realized in the fractal structure. This is the first report on such localization of electromagnetic waves in three-dimensional fractal cavities.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 92
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 15089465
- Full Text :
- https://doi.org/10.1103/PhysRevLett.92.093902