Terahertz imaging with quantum cascade lasers
Milliwatt average power terahertz quantum cascade lasers (THz-QCLs) combined with microbolometer focal plane array cameras allow for acquisition rates on the order of 1106pixels/s. This system enables real-time imaging in transmission and reflection modes with signal to noise ratios of 25 dB per pix...
| Main Authors: | , , , , |
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| Format: | Article |
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SPIE
2018
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| Online Access: | http://hdl.handle.net/1721.1/114213 https://orcid.org/0000-0003-1982-4053 |
| _version_ | 1811070352676093952 |
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| author | Lee, Alan W. Kao, Tsung-Yu Zimmerman, Ian A. Oda, Naoki Hu, Qing |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Lee, Alan W. Kao, Tsung-Yu Zimmerman, Ian A. Oda, Naoki Hu, Qing |
| author_sort | Lee, Alan W. |
| collection | MIT |
| description | Milliwatt average power terahertz quantum cascade lasers (THz-QCLs) combined with microbolometer focal plane array cameras allow for acquisition rates on the order of 1106pixels/s. This system enables real-time imaging in transmission and reflection modes with signal to noise ratios of 25 dB per pixel. While these system allow rapid imaging for fairly transparent samples, signal to noise ratios of 90 dB can be achieved with single element detectors where the samples are more opaque or require higher SNR. Systems using LongWave's terahertz QCLs and single/multi-element detectors will be presented. 2016 SPIE. Keywords: terahertz quantum cascade laser, spectroscopy, heterodyne |
| first_indexed | 2024-09-23T08:34:36Z |
| format | Article |
| id | mit-1721.1/114213 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:34:36Z |
| publishDate | 2018 |
| publisher | SPIE |
| record_format | dspace |
| spelling | mit-1721.1/1142132022-09-23T13:02:44Z Terahertz imaging with quantum cascade lasers Lee, Alan W. Kao, Tsung-Yu Zimmerman, Ian A. Oda, Naoki Hu, Qing Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Hu, Qing Milliwatt average power terahertz quantum cascade lasers (THz-QCLs) combined with microbolometer focal plane array cameras allow for acquisition rates on the order of 1106pixels/s. This system enables real-time imaging in transmission and reflection modes with signal to noise ratios of 25 dB per pixel. While these system allow rapid imaging for fairly transparent samples, signal to noise ratios of 90 dB can be achieved with single element detectors where the samples are more opaque or require higher SNR. Systems using LongWave's terahertz QCLs and single/multi-element detectors will be presented. 2016 SPIE. Keywords: terahertz quantum cascade laser, spectroscopy, heterodyne 2018-03-19T17:50:23Z 2018-03-19T17:50:23Z 2016-05 2018-03-15T12:53:14Z Article http://purl.org/eprint/type/ConferencePaper http://hdl.handle.net/1721.1/114213 Lee, Alan W. et al. “Terahertz Imaging with Quantum Cascade Lasers.” Proceedings Volume 9854: Image Sensing Technologies: Materials, Devices, Systems, and Applications III, 17-21 April, 2016, Baltimore, Maryland, edited by Nibir K. Dhar and Achyut K. Dutta, SPIE, 2016, pp. 9629–9653 © 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) https://orcid.org/0000-0003-1982-4053 http://dx.doi.org/10.1117/12.2224140 Proceedings Volume 9854, Image Sensing Technologies: Materials, Devices, Systems, and Applications III Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf SPIE SPIE |
| spellingShingle | Lee, Alan W. Kao, Tsung-Yu Zimmerman, Ian A. Oda, Naoki Hu, Qing Terahertz imaging with quantum cascade lasers |
| title | Terahertz imaging with quantum cascade lasers |
| title_full | Terahertz imaging with quantum cascade lasers |
| title_fullStr | Terahertz imaging with quantum cascade lasers |
| title_full_unstemmed | Terahertz imaging with quantum cascade lasers |
| title_short | Terahertz imaging with quantum cascade lasers |
| title_sort | terahertz imaging with quantum cascade lasers |
| url | http://hdl.handle.net/1721.1/114213 https://orcid.org/0000-0003-1982-4053 |
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