THz near-field measurements of metal structures

A.J.L. Adam; J.M. Brok; P.C.M. Planken; M.A. Seo; D.S. Kim

doi:10.1016/j.crhy.2007.07.005

THz near-field measurements of metal structures

A.J.L. Adam, J.M. Brok, P.C.M. Planken, M.A. Seo, D.S. Kim

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

17 Citations (Scopus)

Abstract

We report on electro-optic measurements of THz electric fields in the near-field of metal structures lying on GaP electro-optic sampling crystals. With (110) oriented crystals, the x or y component of the THz electric field is measured, whereas with a (001) oriented crystal, the z-component is measured. With an estimated spatial resolution of 20 µm, the technique allows us to map the field on a scale, orders of magnitude smaller than the spatial dimensions of these structures. We illustrate the technique by showing results of measurements of the THz electric field in a plane underneath a metal sphere and a single square hole in a metal foil. The technique provides us with a wealth of information on the time-evolution of light fields near metal structures.

Original language	English
Pages (from-to)	161-168
Journal	Comptes Rendus Physique
Volume	9
Issue number	2
DOIs	https://doi.org/10.1016/j.crhy.2007.07.005
Publication status	Published - 2008

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title = "THz near-field measurements of metal structures",

abstract = "We report on electro-optic measurements of THz electric fields in the near-field of metal structures lying on GaP electro-optic sampling crystals. With (110) oriented crystals, the x or y component of the THz electric field is measured, whereas with a (001) oriented crystal, the z-component is measured. With an estimated spatial resolution of 20 µm, the technique allows us to map the field on a scale, orders of magnitude smaller than the spatial dimensions of these structures. We illustrate the technique by showing results of measurements of the THz electric field in a plane underneath a metal sphere and a single square hole in a metal foil. The technique provides us with a wealth of information on the time-evolution of light fields near metal structures.",

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AU - Adam, A.J.L.

AU - Brok, J.M.

AU - Planken, P.C.M.

AU - Seo, M.A.

AU - Kim, D.S.

PY - 2008

Y1 - 2008

N2 - We report on electro-optic measurements of THz electric fields in the near-field of metal structures lying on GaP electro-optic sampling crystals. With (110) oriented crystals, the x or y component of the THz electric field is measured, whereas with a (001) oriented crystal, the z-component is measured. With an estimated spatial resolution of 20 µm, the technique allows us to map the field on a scale, orders of magnitude smaller than the spatial dimensions of these structures. We illustrate the technique by showing results of measurements of the THz electric field in a plane underneath a metal sphere and a single square hole in a metal foil. The technique provides us with a wealth of information on the time-evolution of light fields near metal structures.

AB - We report on electro-optic measurements of THz electric fields in the near-field of metal structures lying on GaP electro-optic sampling crystals. With (110) oriented crystals, the x or y component of the THz electric field is measured, whereas with a (001) oriented crystal, the z-component is measured. With an estimated spatial resolution of 20 µm, the technique allows us to map the field on a scale, orders of magnitude smaller than the spatial dimensions of these structures. We illustrate the technique by showing results of measurements of the THz electric field in a plane underneath a metal sphere and a single square hole in a metal foil. The technique provides us with a wealth of information on the time-evolution of light fields near metal structures.

U2 - 10.1016/j.crhy.2007.07.005

DO - 10.1016/j.crhy.2007.07.005

M3 - Article

VL - 9

SP - 161

EP - 168

JO - Comptes Rendus Physique

JF - Comptes Rendus Physique

SN - 1631-0705

IS - 2

ER -