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Channel-Add Operation of a Device Using Defects in a Two-Dimensional Photonic Crystal Slab

Published online by Cambridge University Press:  01 February 2011

Takashi Asano
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Susumu Noda
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Kazuaki Kiyota
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Yoshinori Tanaka
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Yoshihiro Akahane
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Bonshik Song
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Masamtsu Mochizuki
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
Masahiro Imada
Affiliation:
Department of Electronic Science & Engineering, Kyoto University, Kyoto, 606-8501 Japan Core Research for Evolutional Science and Technology (CREST) by Japan Science and Technology Corporation, Kyoto, 606-8501 Japan
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Abstract

A channel add-filtering function of a device based on defects in a two dimensional photonic crystal slab is investigated in addition to a channel drop-filtering function reported previously. It is considered that photons irradiated to a point defect from free space are trapped by the point defect, are transferred to a line defect waveguide nearby, and are emitted from the waveguide edge. It is shown that the spectrum of the add-filtering function is almost same as that of the drop-filtering function, which demonstrates that photons can be not only dropped-from but also added-to a line-defect waveguide through the resonant trapping by point defects.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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References

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