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Proceedings Paper

Transparent metal electrodes: the photonic bandgap approach
Author(s): Mark J. Bloemer; Michael Scalora
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Paper Abstract

Several groups have been investigating the possibility of using 1D photonic band gap (PBG) structures to make better reflectors. It was found that by using alternating layers of metal and dielectric, the reflectivity could be enhanced over the bulk metal for a narrow range of frequencies inside the gap. Alternately, we have recently demonstrated that these periodic metal/dielectric PBGs (MD-PBGs) have an unusually high transmittance in the pass band. It is possible to have a MD-PBG containing a total amount of metal of more than five optical skin depths thick, and yet maintain a transmittance of > 60 percent over the entire visible range of wavelengths. Due to the high conductivity of metals compared with semiconducting indium tin oxide films, the overall figure of merit for MD-PBGs can be much larger. In addition, the transmission band for the MD-PBGs can be designed to filter unwanted wavelengths and provide optimum color control.

Paper Details

Date Published: 16 December 1998
PDF: 8 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332616
Show Author Affiliations
Mark J. Bloemer, U.S. Army Aviation and Missile Command (United States)
Michael Scalora, Time Domain Corp. (United States)

Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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