Experimental investigation of layer-by-layer metallic photonic crystals

The authors have investigated the transmission properties and defect characteristics of layer-by-layer metallic photonic crystals. Thay have demonstrated experimentally that the metallicity gap of these crystals extends to an upper band-edge frequency, and no lower edge was detected down to 2 GHz, The defect structures built around these crystals exhibited high transmission peak amplitudes (100%) and high Q factors (2250). The crystals with low filling ratios (around 1-2%) were tested and were still found to possess metallic photonic crystal properties. These crystals exhibited high reflection rates within the metallicity gap and reasonable defect mode characteristics. A power enhancement factor of 190 was measured for the electromagnetic (EM) wave within planar cavity structures, by placing a monopole antenna inside the defect volume. These measurements show that detectors embedded inside a metallic photonic crystal can be used as frequency selective resonant cavity enhanced (RCE) detectors with increased sensitivity and efficiency when compared to conventional detectors.


Published in:
IEE PROCEEDINGS-OPTOELECTRONICS, 145, 6, 409-414
Year:
1998
ISSN:
1350-2433
Keywords:
Laboratories:




 Record created 2016-08-16, last modified 2018-03-17


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