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Author Katsarakis, N. ♦ Chatzitheodoridis, E. ♦ Kiriakidis, G. ♦ Sigalas, M. M. ♦ Soukoulis, C. M. ♦ Leung, W. Y. ♦ Tuttle, G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENGINEERING NOT INCLUDED IN OTHER CATEGORIES ♦ ENERGY GAP ♦ MICROWAVE RADIATION ♦ LATTICE PARAMETERS ♦ CRYSTALS ♦ GHZ RANGE 01-100 ♦ WAVE PROPAGATION ♦ STAINLESS STEELS ♦ LASER BEAM MACHINING
Abstract Metallic photonic band-gap crystals operating in the microwave frequency range were fabricated by laser precision machining. They consist of stainless steel plates with a tetragonal lattice of holes and a lattice constant of 15 mm. Transmission measurements show that periodic crystals exhibit a cutoff frequency in the 8{endash}18 GHz range, below which no propagation is allowed. The cutoff frequency can be easily tuned by varying the interlayer distance or the filling fraction of the metal. Combinations of plates with different hole diameters create defect modes with relatively sharp peaks, which are tunable. The experimental measurements are in good agreement with theoretical calculations. {copyright} {ital 1999 American Institute of Physics.}
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-05-01
Publisher Place United States
Journal Applied Physics Letters
Volume Number 74
Issue Number 22


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