Abstract
We show that dielectric or even perfectly conducting cylinders can be cloaked by a uniform or a layered dielectric cladding, without the need of any exotic or magnetic material parameters. In particular, we start by presenting a simple analytical concept that can accurately describe the cloaking effect obtained with conical silver plates in the visible spectrum. The modeled structure has been originally presented in Tretyakov, where its operation as a cloak in the optical frequencies was studied only numerically. We model rigorously this configuration as a multilayer dielectric cover surrounding the cloaked object, with excellent agreement to the simulation results of the actual device. The concept of using uniform or multilayer dielectric covers, with relative permittivities larger than unity, is then successfully extended to cloaking of impenetrable objects such as conducting cylinders.
| Original language | English |
|---|---|
| Article number | 115402 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 85 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Mar 5 2012 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Electromagnetic cloaking of cylindrical objects by multilayer or uniform dielectric claddings. / Valagiannopoulos, Constantinos A.; Alitalo, Pekka.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 11, 115402, 05.03.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electromagnetic cloaking of cylindrical objects by multilayer or uniform dielectric claddings
AU - Valagiannopoulos, Constantinos A.
AU - Alitalo, Pekka
PY - 2012/3/5
Y1 - 2012/3/5
N2 - We show that dielectric or even perfectly conducting cylinders can be cloaked by a uniform or a layered dielectric cladding, without the need of any exotic or magnetic material parameters. In particular, we start by presenting a simple analytical concept that can accurately describe the cloaking effect obtained with conical silver plates in the visible spectrum. The modeled structure has been originally presented in Tretyakov, where its operation as a cloak in the optical frequencies was studied only numerically. We model rigorously this configuration as a multilayer dielectric cover surrounding the cloaked object, with excellent agreement to the simulation results of the actual device. The concept of using uniform or multilayer dielectric covers, with relative permittivities larger than unity, is then successfully extended to cloaking of impenetrable objects such as conducting cylinders.
AB - We show that dielectric or even perfectly conducting cylinders can be cloaked by a uniform or a layered dielectric cladding, without the need of any exotic or magnetic material parameters. In particular, we start by presenting a simple analytical concept that can accurately describe the cloaking effect obtained with conical silver plates in the visible spectrum. The modeled structure has been originally presented in Tretyakov, where its operation as a cloak in the optical frequencies was studied only numerically. We model rigorously this configuration as a multilayer dielectric cover surrounding the cloaked object, with excellent agreement to the simulation results of the actual device. The concept of using uniform or multilayer dielectric covers, with relative permittivities larger than unity, is then successfully extended to cloaking of impenetrable objects such as conducting cylinders.
UR - http://www.scopus.com/inward/record.url?scp=84858067288&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858067288&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.85.115402
DO - 10.1103/PhysRevB.85.115402
M3 - Article
VL - 85
JO - Physical Review B
JF - Physical Review B
SN - 1098-0121
IS - 11
M1 - 115402
ER -