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Dispersion relation of 3D photonic crystals based on macroporous silicon

Published online by Cambridge University Press:  01 February 2011

J. Schilling ,
F. Müller ,
R.B. Wehrspohn ,
U. Gösele  and
K. Busch
J. Schilling
Affiliation:
Max-Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
F. Müller
Affiliation:
Max-Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
R.B. Wehrspohn
Affiliation:
Max-Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
U. Gösele
Affiliation:
Max-Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany
K. Busch
Affiliation:
Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, P.O. Box 6980,76128 Karlsruhe, Germany
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Abstract

Extended 3D photonic crystals based on macroporous silicon are prepared by applying a periodic variation of the illumination during photoelectrochemical etching. If the lateral pore arrangement is 2D hexagonal, the resulting structure exhibits a simple 3D hexagonal symmetry. The dispersion relation along the pore axis is investigated by optical transmission measurements. Photonic band gaps originating from the pore diameter modulation are observed and the group velocities of the photonic bands are determined by analyzing the Fabry-Perot resonances. Furthermore, angular resolved transmission measurements show a spectral region of omnidirectional total reflectivity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 722: Symposia K/L – Materials and Devices for Optoelectronics and Photonics – Photonic Crystals-From Materials to Devices , 2002 , L6.8
Copyright
Copyright © Materials Research Society 2002

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References

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