Experimental investigation of layer-by-layer metallic photonic crystals

Date
1998-12
Advisor
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Source Title
IEE Proceedings : Optoelectronics
Print ISSN
1350-2433
Electronic ISSN
Publisher
Institution of Electrical Engineers
Volume
145
Issue
6
Pages
409 - 414
Language
English
Type
Article
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Abstract

The authors have investigated the transmission properties and defect characteristics of layer-by-layer metallic photonic crystals. They 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.

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Keywords
Cavity resonators, Crystals, Energy gap, Light reflection, Optoelectronic devices, Photons, Frequency selective resonant cavity enhanced (RCE) detectors, Metallic photonic crystals, Metallicity gap, Optical materials
Citation
Published Version (Please cite this version)