Chin. Phys. Lett.  2002, Vol. 19 Issue (12): 1819-1821    DOI:
Original Articles |
Modification of Absorption of a Bulk Material by Photonic Crystals
XI Yong-Gang;WANG Xin;HU Xin-Hua;LIU Xiao-Han;ZI Jian
National Key Laboratory of Surface Physics, Fudan University, Shanghai 200433
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XI Yong-Gang, WANG Xin, HU Xin-Hua et al  2002 Chin. Phys. Lett. 19 1819-1821
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Abstract 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, absorptance is always suppressed. For frequencies located at photonic bands, absorptance can be suppressed or enhanced, which depends on the relative values of the real refactive index of the absorbing and non-absorbing dielectric layers.
Keywords: 42.70.Qs      42.25.Bs      41.20.Jb     
Published: 01 December 2002
PACS:  42.70.Qs (Photonic bandgap materials)  
  42.25.Bs (Wave propagation, transmission and absorption)  
  41.20.Jb (Electromagnetic wave propagation; radiowave propagation)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I12/01819
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XI Yong-Gang
WANG Xin
HU Xin-Hua
LIU Xiao-Han
ZI Jian
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