Terahertz nanoresonators: Giant field enhancement and ultrabroadband performance

H. R. Park; Y. M. Park; H. S. Kim; J. S. Kyoung; M. A. Seo; D. J. Park; Y. H. Ahn; K. J. Ahn; D. S. Kim

doi:10.1063/1.3368690

Terahertz nanoresonators: Giant field enhancement and ultrabroadband performance

H. R. Park, Y. M. Park, H. S. Kim, J. S. Kyoung, M. A. Seo, D. J. Park, Y. H. Ahn, K. J. Ahn, D. S. Kim

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Abstract

Transmission of terahertz (THz) electromagnetic waves through a series of nanoresonator arrays punctured in a thin metallic film is investigated. Over 30% of normalized transmitted amplitude is observed with only 0.18% of aperture-coverage, implying an electric field enhancement of 170. Increasing the coverage to 0.6% results in a 90% normalized amplitude, with a broader line width. Inspired by log-periodic antenna, we put ten nanoresonators with four different lengths per unit cell, succeeding in an ultrabroadband THz filter with one decade width between 0.2 and 2.0 THz.

Original language	English (US)
Article number	121106
Journal	Applied Physics Letters
Volume	96
Issue number	12
DOIs	https://doi.org/10.1063/1.3368690
State	Published - 2010
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) (SRC, Grant No. R11-2008-095-01000-0) and the Korea Research Foundation (KRF) grant funded by the Korea government (MEST) (Grant No. 2009-0071309), KICOS (GRL, Grant No. K20815000003), Seoul Science Fellowship, and the Seoul R&BD Program (Program No. 10543).

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@article{3ff2bd6795614c35b1f5c9564fc94516,

title = "Terahertz nanoresonators: Giant field enhancement and ultrabroadband performance",

abstract = "Transmission of terahertz (THz) electromagnetic waves through a series of nanoresonator arrays punctured in a thin metallic film is investigated. Over 30% of normalized transmitted amplitude is observed with only 0.18% of aperture-coverage, implying an electric field enhancement of 170. Increasing the coverage to 0.6% results in a 90% normalized amplitude, with a broader line width. Inspired by log-periodic antenna, we put ten nanoresonators with four different lengths per unit cell, succeeding in an ultrabroadband THz filter with one decade width between 0.2 and 2.0 THz.",

author = "Park, {H. R.} and Park, {Y. M.} and Kim, {H. S.} and Kyoung, {J. S.} and Seo, {M. A.} and Park, {D. J.} and Ahn, {Y. H.} and Ahn, {K. J.} and Kim, {D. S.}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) (SRC, Grant No. R11-2008-095-01000-0) and the Korea Research Foundation (KRF) grant funded by the Korea government (MEST) (Grant No. 2009-0071309), KICOS (GRL, Grant No. K20815000003), Seoul Science Fellowship, and the Seoul R&BD Program (Program No. 10543).",

year = "2010",

doi = "10.1063/1.3368690",

language = "English (US)",

volume = "96",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "12",

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TY - JOUR

T1 - Terahertz nanoresonators

T2 - Giant field enhancement and ultrabroadband performance

AU - Park, H. R.

AU - Park, Y. M.

AU - Kim, H. S.

AU - Kyoung, J. S.

AU - Seo, M. A.

AU - Park, D. J.

AU - Ahn, Y. H.

AU - Ahn, K. J.

AU - Kim, D. S.

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) (SRC, Grant No. R11-2008-095-01000-0) and the Korea Research Foundation (KRF) grant funded by the Korea government (MEST) (Grant No. 2009-0071309), KICOS (GRL, Grant No. K20815000003), Seoul Science Fellowship, and the Seoul R&BD Program (Program No. 10543).

PY - 2010

Y1 - 2010

N2 - Transmission of terahertz (THz) electromagnetic waves through a series of nanoresonator arrays punctured in a thin metallic film is investigated. Over 30% of normalized transmitted amplitude is observed with only 0.18% of aperture-coverage, implying an electric field enhancement of 170. Increasing the coverage to 0.6% results in a 90% normalized amplitude, with a broader line width. Inspired by log-periodic antenna, we put ten nanoresonators with four different lengths per unit cell, succeeding in an ultrabroadband THz filter with one decade width between 0.2 and 2.0 THz.

AB - Transmission of terahertz (THz) electromagnetic waves through a series of nanoresonator arrays punctured in a thin metallic film is investigated. Over 30% of normalized transmitted amplitude is observed with only 0.18% of aperture-coverage, implying an electric field enhancement of 170. Increasing the coverage to 0.6% results in a 90% normalized amplitude, with a broader line width. Inspired by log-periodic antenna, we put ten nanoresonators with four different lengths per unit cell, succeeding in an ultrabroadband THz filter with one decade width between 0.2 and 2.0 THz.

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U2 - 10.1063/1.3368690

DO - 10.1063/1.3368690

M3 - Article

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VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 121106

ER -

Terahertz nanoresonators: Giant field enhancement and ultrabroadband performance

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