期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.243901
关键词
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资金
- U.S. DOE [DE-AC02-05CH11231]
- NSF Nano-scale Science and Engineering Center [CMMI-0751621]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0751621] Funding Source: National Science Foundation
We show that magnetized plasma with appropriately designed parameters supports nearly diffraction-less propagation of electromagnetic waves along the direction of the applied magnetic field, arising from their unbounded equifrequency contour in the magnetized plasma. Such a unique feature can be utilized to construct subdiffraction imaging devices, which is confirmed by detailed numerical investigations. Subdiffraction imaging devices based on magnetic plasma do not require microfabrication normally entailed by construction of metamaterials; more importantly, they can be dynamically reconfigured by tuning the applied magnetic field or the plasma density, and therefore they represent a facile and powerful route for imaging applications.
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