Back to Search
Start Over
Completely stopping microwaves with extremely enhanced magnetic fields
- Source :
- Scientific Reports, Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- A microwave one-way waveguide of three-dimensional configuration is proposed and investigated theoretically. In this waveguide there exists a complete one-way propagation band, where the mode propagates only in one direction and can be immune to backscattering. By terminating the one-way waveguide with metal slab, one-way propagating waves in this waveguide system can be stopped at the terminal end without any backscattering. Meanwhile, a hotspot with extremely enhanced magnetic-field amplitude is generated in this 3D waveguide system. For an incident microwave pulse, the trapped wave packet can be compressed to deep subwavelength scale besides the magnetic field enhancement. Moreover, the magnetic field enhancement of trapped waves can be further largely increased by tapering laterally the waveguide system. The approach for trapping microwaves has promising applications in magnetic sensing and magnetic non-linearity.
- Subjects :
- Normalization property
Materials science
Science
Wave packet
Physics::Optics
Tapering
Trapping
01 natural sciences
Article
010309 optics
Optics
0103 physical sciences
Deep Subwavelength Scale
010306 general physics
Magnetic Field Enhancement
Multidisciplinary
Waveguide System
business.industry
Trapping Microwaves
Magnetic field
Amplitude
Slab
Medicine
Trapped Waves
business
Microwave
Subjects
Details
- ISSN :
- 20452322
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....6a61e98ff80c14f78fb86a9f25ba787b