Essential parameter in the formation of photonic band gaps

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It is generally believed that the spatial periodic variation of a dielectric constant epsilon or refractive index root mu epsilon can give rise to photonic band gaps. However, through microwave experiments of microstrip lines with a periodic array of holes, we demonstrate that the wave impedance, which depends on root mu/epsilon, is an essential parameter, giving photonic band gaps rather than the refractive index. We explain physically the effect of the magnetic permeability mu on photonic band gaps, already reported.
Publisher
Amer Physical Soc
Issue Date
1999-04
Article Type
Article
Keywords

WAVE-GUIDES; CRYSTALS; MODES

Citation

PHYSICAL REVIEW E, v.59, no.4, pp.4695 - 4698

ISSN
1539-3755
URI
http://hdl.handle.net/10203/21579
Appears in Collection
PH-Journal Papers(저널논문)
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