期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.067401
关键词
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资金
- S3TEC
- Energy Frontier Research Center
- U.S. DOE, Office of Science, and Office of Basic Energy Sciences [DE-SC0001299]
- U.S. Army Research Office through Institute for Soldier Nanotechnologies [W911NF-07-D0004]
- MRSEC Program of the NSF [DMR-0819762]
We demonstrate and distinguish experimentally the existence of a special type of Fano resonances at k approximate to 0 in a macroscopic two-dimensional photonic crystal slab. We fabricate a square lattice array of holes in a silicon nitride layer and perform an angular resolved spectral analysis of the various Fano resonances. We elucidate their radiation behavior using temporal coupled-mode theory and symmetry considerations. The unique simplicity of this system whereby an ultralong lifetime delocalized electromagnetic field can exist above the surface and consequently easily interact with added matter, provides exciting new opportunities for the study of light and matter interaction.
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