Modification of Absorption of a Bulk Material by Photonic Crystals
摘要
We show theoretically that it is possible to modify absorption of a bulk absorbing material by inserting another non-absorbing dielectric slab periodically to form one-dimensional photonic crystals.It is found that,for frequencies within photonic bandgaps,absorption is always suppressed.For frequencies located at photonic bands,absorption can be suppressed or enhanced,which depends on the relative values of the real refractive index of the absorbing and non-absorbing dielectric layers.
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席永刚, 王昕. Modification of Absorption of a Bulk Material by Photonic Crystals[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2002.
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