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Broadband Antireflecting Conductive Metamaterial Films

Published online by Cambridge University Press:  10 August 2011

Nafiseh Pishbin ,
David Crouse ,
Igor Bendoym  and
Michael Crouse
Nafiseh Pishbin
Affiliation:
Department of Electrical Engineering, The City College of New York, 140th St. at Convent Ave, Steinman Hall, Room 614, New York, NY 10031
David Crouse
Affiliation:
Department of Electrical Engineering, The City College of New York, 140th St. at Convent Ave, Steinman Hall, Room 614, New York, NY 10031
Igor Bendoym
Affiliation:
Department of Electrical Engineering, The City College of New York, 140th St. at Convent Ave, Steinman Hall, Room 614, New York, NY 10031
Michael Crouse
Affiliation:
Phoebus Optoelectronics LLC, 12 Desbrosses St., New York, NY 10013
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Abstract

A polarization-independent, broadband, antireflecting compound aperture array is designed, fabricated and characterized. The structure is composed of an aluminum film with a periodic array of perforations (apertures) configured in a square lattice with a unit cell consisting of two apertures with different diameters, both filled with silicon oxynitride. Light-channeling waveguide cavity modes of different energies are excited within the two different apertures within each unit cell thereby transmitting different parts of the solar spectrum into the substrate. Experimental characterization shows low reflection (<10%) and low diffuse backscatter. Numerous applications of the films include light detecting and emitting structures and devices.

Keywords

transparent conductornanostructureoptical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1325: Symposium E – Energy Harvesting—Recent Advances in Materials, Devices and Applications , 2011 , mrss11-1325-e05-03
Copyright
Copyright © Materials Research Society 2011

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References

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