Abstract
We show that using uniaxial double negative metamaterials it is possible to create bodies which optimally absorb power from all spatial harmonics of the incident fields, both propagating and evanescent. Comparing with the ideal black bodies which fully absorb only all propagating waves, these new objects appear 'infinitely more black', in the sense of the absorption efficiency. The concept is illustrated by considering infinite absorptive cylinders. The required material parameters for a conjugately matched cylindrical absorber are derived and absorption efficiency is studied numerically.
| Original language | English |
|---|---|
| Title of host publication | 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 511-513 |
| Number of pages | 3 |
| ISBN (Print) | 9781479978366 |
| DOIs | |
| Publication status | Published - Nov 30 2015 |
| Externally published | Yes |
| Event | 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015 - Oxford, United Kingdom Duration: Sep 7 2015 → Sep 12 2015 |
Other
| Other | 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015 |
|---|---|
| Country | United Kingdom |
| City | Oxford |
| Period | 9/7/15 → 9/12/15 |
Fingerprint
Keywords
- Absorption
- Electromagnetics
- Impedance
- Mathematical model
- Metamaterials
- Optics
- Transforms
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Blacker than ideally black : Double negative conjugately matched cylinders. / Vehmas, J.; Valagiannopoulos, C.; Tretyakov, S.; Maslovski, S.
2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 511-513 7342506.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Blacker than ideally black
T2 - Double negative conjugately matched cylinders
AU - Vehmas, J.
AU - Valagiannopoulos, C.
AU - Tretyakov, S.
AU - Maslovski, S.
PY - 2015/11/30
Y1 - 2015/11/30
N2 - We show that using uniaxial double negative metamaterials it is possible to create bodies which optimally absorb power from all spatial harmonics of the incident fields, both propagating and evanescent. Comparing with the ideal black bodies which fully absorb only all propagating waves, these new objects appear 'infinitely more black', in the sense of the absorption efficiency. The concept is illustrated by considering infinite absorptive cylinders. The required material parameters for a conjugately matched cylindrical absorber are derived and absorption efficiency is studied numerically.
AB - We show that using uniaxial double negative metamaterials it is possible to create bodies which optimally absorb power from all spatial harmonics of the incident fields, both propagating and evanescent. Comparing with the ideal black bodies which fully absorb only all propagating waves, these new objects appear 'infinitely more black', in the sense of the absorption efficiency. The concept is illustrated by considering infinite absorptive cylinders. The required material parameters for a conjugately matched cylindrical absorber are derived and absorption efficiency is studied numerically.
KW - Absorption
KW - Electromagnetics
KW - Impedance
KW - Mathematical model
KW - Metamaterials
KW - Optics
KW - Transforms
UR - http://www.scopus.com/inward/record.url?scp=84960156982&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960156982&partnerID=8YFLogxK
U2 - 10.1109/MetaMaterials.2015.7342506
DO - 10.1109/MetaMaterials.2015.7342506
M3 - Conference contribution
SN - 9781479978366
SP - 511
EP - 513
BT - 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
ER -