Uncoupled defect modes in a two-dimensional quasiperiodic photonic crystal

The defect modes of a two-dimensional quasiperiodic photonic crystal (QPC) with defects are studied. It is found that if the defects possess the same rotational symmetry, the resonant frequencies of the defects are identical. On the other hand uncoupled modes exist when the field symmetry of defect...

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Bibliographic Details
Published inEurophysics letters Vol. 64; no. 2; pp. 185 - 189
Main Authors Wang, Y. Q, Feng, Z. F, Xu, X. S, Cheng, B. Y, Zhang, D. Z
Format Journal Article
LanguageEnglish
Published Les Ulis IOP Publishing 01.10.2003
EDP sciences
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical materials
Optics
Photonic bandgap materials
Physics
Optical materials
Field distribution
Two dimensional structure
Quasi periodic structure
Photonic crystals
Defects
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Summary:The defect modes of a two-dimensional quasiperiodic photonic crystal (QPC) with defects are studied. It is found that if the defects possess the same rotational symmetry, the resonant frequencies of the defects are identical. On the other hand uncoupled modes exist when the field symmetry of defect modes is different from that of external exciting waves. A corresponding experiment in the microwave region confirms the phenomenon.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2003-00286-8