Development of a terahertz wave circular polarizer using a 2D array of metallic helix metamaterial
We developed a broadband terahertz wave circular polarizer that consists of a two-dimensional (2D) array of three-dimensional metallic helices. Each helix operates in an axial mode of operation where the wavelength of resonance is comparable to the dimensions of the helix. We evaluated the performance of the polarizer using standard terahertz time domain spectroscopy, and we confirmed that the array of helices transmits a circularly polarized terahertz wave with opposite handedness as that of the helices. The polarizer covers the frequency range from 117 GHz to 208 GHz, close to one octave. We obtained the ellipticity of the circularly polarized terahertz wave close to unity in this frequency band.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:46 |
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| Enthalten in: |
Optics letters - 46(2021), 9 vom: 01. Mai, Seite 2232-2235 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tomita, Hiroya [VerfasserIn] |
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| Anmerkungen: |
Date Revised 03.05.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/OL.422025 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM324826265 |
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| 520 | |a We developed a broadband terahertz wave circular polarizer that consists of a two-dimensional (2D) array of three-dimensional metallic helices. Each helix operates in an axial mode of operation where the wavelength of resonance is comparable to the dimensions of the helix. We evaluated the performance of the polarizer using standard terahertz time domain spectroscopy, and we confirmed that the array of helices transmits a circularly polarized terahertz wave with opposite handedness as that of the helices. The polarizer covers the frequency range from 117 GHz to 208 GHz, close to one octave. We obtained the ellipticity of the circularly polarized terahertz wave close to unity in this frequency band | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Hashimoto, Kazuma |e verfasserin |4 aut | |
| 700 | 1 | |a Takeya, Kei |e verfasserin |4 aut | |
| 700 | 1 | |a Tripathi, Saroj R |e verfasserin |4 aut | |
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