期刊
JOURNAL OF OPTICS
卷 16, 期 12, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/16/12/125107
关键词
perfect absorber; broadband; Kerr nonlinearity
类别
资金
- Chinese National Key Basic Research Special Fund [2011CB922003]
- National Basic Research Program (973 Program) of China [2012CB921900]
- Natural Science Foundation of China [11304163, 61378006]
- Program for New Century Excellent Talents in University [NCET-13-0294]
- Natural Science Foundation of Tianjin [13JCQNJC01900]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120031120032]
- 111 project [B07013]
We present the design and analysis of a polarization-insensitive and wide-angle broadband nearly perfect absorber by planar metamaterial in the visible regime. The bandwidth of absorption spectrum can be effectively expanded by combining multiple resonant elements. The forming mechanisms of the broadband metamaterial perfect absorber (MPA) are also demonstrated by the hybridization of the plasmonic system. The resonance of the broadband MPA can be dynamically tuned by varying the intensity of the incident beam. This kind of all-optically tunable perfect absorber will help to overcome some of the limitations of customary designs developed so far.
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