Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: Mapping of electric-field-, magnetic-field-, and Poynting vectors

M. A. Seo; A. J.L. Adam; J. H. Kang; J. W. Lee; S. C. Jeoung; Q. H. Park; P. C.M. Planken; D. S. Kim

doi:10.1364/OE.15.011781

Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: Mapping of electric-field-, magnetic-field-, and Poynting vectors

M. A. Seo, A. J.L. Adam, J. H. Kang, J. W. Lee, S. C. Jeoung, Q. H. Park, P. C.M. Planken^*, D. S. Kim

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

133 Citations (Scopus)

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	https://doi.org/10.1364/OE.15.011781
Publication status	Published - 2007 Sept 17

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: Mapping of electric-field-, magnetic-field-, and Poynting vectors",

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.",

author = "Seo, \{M. A.\} and Adam, \{A. J.L.\} and Kang, \{J. H.\} and Lee, \{J. W.\} and Jeoung, \{S. C.\} and Park, \{Q. H.\} and Planken, \{P. C.M.\} and Kim, \{D. S.\}",

year = "2007",

month = sep,

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doi = "10.1364/OE.15.011781",

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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. H.

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 - https://www.scopus.com/pages/publications/34648846631

U2 - 10.1364/OE.15.011781

DO - 10.1364/OE.15.011781

M3 - Article

C2 - 19547541

AN - SCOPUS:34648846631

SN - 1094-4087

VL - 15

SP - 11781

EP - 11789

JO - Optics Express

JF - Optics Express

IS - 19

ER -

Fourier-transform terahertz near-field imaging of one-dimensional slit arrays: Mapping of electric-field-, magnetic-field-, and Poynting vectors

Abstract

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