Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes
In this letter an experimental method is introduced that allows detection of terahertz (THz) radiation from arrays of joule-heated Single-Walled Carbon Nanotubes (SWCNTs), by coupling this radiation through integrated antennas and a silicon lens. The radiation forms a diffraction-limited beam with a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2011-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.3660346 |
| _version_ | 1818048337840963584 |
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| author | M. Muthee E. Carrion J. Nicholson S. K. Yngvesson |
| author_facet | M. Muthee E. Carrion J. Nicholson S. K. Yngvesson |
| author_sort | M. Muthee |
| collection | DOAJ |
| description | In this letter an experimental method is introduced that allows detection of terahertz (THz) radiation from arrays of joule-heated Single-Walled Carbon Nanotubes (SWCNTs), by coupling this radiation through integrated antennas and a silicon lens. The radiation forms a diffraction-limited beam with a total maximum radiated power of 450 nW, significantly greater than the power estimated from Nyquist thermal noise (8 nW). The physical radiation process is unknown at this stage, but possible explanations for the high radiated power are discussed briefly. The emission has a typical bandwidth of 1.2 THz and can be tuned to different frequencies by changing the dimensions of the antennas. Arrays of the devices could be integrated in CMOS integrated circuits, and find application in THz systems, such as in near-range medical imaging. |
| first_indexed | 2024-12-10T10:20:05Z |
| format | Article |
| id | doaj.art-467de112201b43f9a7d2f3d34db76633 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-10T10:20:05Z |
| publishDate | 2011-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-467de112201b43f9a7d2f3d34db766332022-12-22T01:52:53ZengAIP Publishing LLCAIP Advances2158-32262011-12-0114042131042131-610.1063/1.3660346034104ADVAntenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubesM. Muthee0E. Carrion1J. Nicholson2S. K. Yngvesson3Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USADepartment of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USACenter for Hierarchical Manufacturing, University of Massachusetts, Amherst, MA 01003, USADepartment of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USAIn this letter an experimental method is introduced that allows detection of terahertz (THz) radiation from arrays of joule-heated Single-Walled Carbon Nanotubes (SWCNTs), by coupling this radiation through integrated antennas and a silicon lens. The radiation forms a diffraction-limited beam with a total maximum radiated power of 450 nW, significantly greater than the power estimated from Nyquist thermal noise (8 nW). The physical radiation process is unknown at this stage, but possible explanations for the high radiated power are discussed briefly. The emission has a typical bandwidth of 1.2 THz and can be tuned to different frequencies by changing the dimensions of the antennas. Arrays of the devices could be integrated in CMOS integrated circuits, and find application in THz systems, such as in near-range medical imaging.http://dx.doi.org/10.1063/1.3660346 |
| spellingShingle | M. Muthee E. Carrion J. Nicholson S. K. Yngvesson Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes AIP Advances |
| title | Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes |
| title_full | Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes |
| title_fullStr | Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes |
| title_full_unstemmed | Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes |
| title_short | Antenna-coupled terahertz radiation from joule-heated single-wall carbon nanotubes |
| title_sort | antenna coupled terahertz radiation from joule heated single wall carbon nanotubes |
| url | http://dx.doi.org/10.1063/1.3660346 |
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