Abstract
We present 2D measurements of the full THz electric field behind a sample consisting of multiple slits in a metal foil. Our measurements, which have a sub-wavelength spatial, and a sub-period temporal resolution, reveal electric field lines, electric field vortices and saddle points. From our measurements we are able to reconstruct the magnetic field and, finally, the position and time-dependent Poynting vector which shows the flow of energy behind the sample. Our results show that it is possible to study the flow of light near sub-wavelength plasmonic structures such as slit-arrays and, by implication, other metamaterial samples.
| Original language | English |
|---|---|
| Pages (from-to) | 11781-11789 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 15 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 2007 Sep 17 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Fourier-transform terahertz near-field imaging of one-dimensional slit arrays : Mapping of electric-field-, magnetic-field-, and Poynting vectors. / Seo, M. A.; Adam, A. J L; Kang, J. H.; Lee, J. W.; Jeoung, S. C.; Park, Q Han; Planken, P. C M; Kim, D. S.
In: Optics Express, Vol. 15, No. 19, 17.09.2007, p. 11781-11789.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Fourier-transform terahertz near-field imaging of one-dimensional slit arrays
T2 - Mapping of electric-field-, magnetic-field-, and Poynting vectors
AU - Seo, M. A.
AU - Adam, A. J L
AU - Kang, J. H.
AU - Lee, J. W.
AU - Jeoung, S. C.
AU - Park, Q Han
AU - Planken, P. C M
AU - Kim, D. S.
PY - 2007/9/17
Y1 - 2007/9/17
N2 - We present 2D measurements of the full THz electric field behind a sample consisting of multiple slits in a metal foil. Our measurements, which have a sub-wavelength spatial, and a sub-period temporal resolution, reveal electric field lines, electric field vortices and saddle points. From our measurements we are able to reconstruct the magnetic field and, finally, the position and time-dependent Poynting vector which shows the flow of energy behind the sample. Our results show that it is possible to study the flow of light near sub-wavelength plasmonic structures such as slit-arrays and, by implication, other metamaterial samples.
AB - We present 2D measurements of the full THz electric field behind a sample consisting of multiple slits in a metal foil. Our measurements, which have a sub-wavelength spatial, and a sub-period temporal resolution, reveal electric field lines, electric field vortices and saddle points. From our measurements we are able to reconstruct the magnetic field and, finally, the position and time-dependent Poynting vector which shows the flow of energy behind the sample. Our results show that it is possible to study the flow of light near sub-wavelength plasmonic structures such as slit-arrays and, by implication, other metamaterial samples.
UR - http://www.scopus.com/inward/record.url?scp=34648846631&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34648846631&partnerID=8YFLogxK
U2 - 10.1364/OE.15.011781
DO - 10.1364/OE.15.011781
M3 - Article
C2 - 19547541
AN - SCOPUS:34648846631
VL - 15
SP - 11781
EP - 11789
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 19
ER -