Three-dimensional metallodielectric photonic crystals incorporating flat metal elements

✍ Scribed by K. A. McIntosh; O. B. McMahon; S. Verghese

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 121 KB
• Volume: 17
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19980220)17:3<153::aid-mop1>3.0.co;2-i

✦ Synopsis

A three-dimensional metallodielectric photonic crystal ( ) MDPC that utilizes planar metal scattering elements in a dielectric medium has been studied at microwa¨e frequencies. The metal elements are flat copper circles defined on thin dielectric sheets using standard printed-circuit techniques. Thicker polyethelene sheets are alternately ( ) stacked with the thin metallized sheets to form a 111 -oriented facecentered-cubic lattice. A photonic stopband has been measured from this '' flat-atom'' MDPC at 8.4 GHz with a rejection le¨el of 18 dB per lattice period and a width of 50% of the center frequency. The photonic stopband persists o¨er a broad range of angles. Flat-atom MDPC results are compared with measurements made on ''spherical-atom'' MDPC structures. Variation of the stopband characteristics with thickness of the dielectric layers has been explored.