Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser
This paper describes a real-time transmission-type Terahertz (THz) microscope, with palm-size THz camera and compact quantum cascade laser (QCL). The THz camera contains 320x240 microbolometer focal plane array which operates at 30 Hz frame rate and has lock-in imaging function as well as integratio...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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SPIE
2014
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| Online Access: | http://hdl.handle.net/1721.1/87070 https://orcid.org/0000-0003-1982-4053 |
| _version_ | 1811080772434526208 |
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| author | Oda, Naoki Ishi, Tsutomu Morimoto, Takao Sudou, Takayuki Tabata, Hitoshi Kawabe, Shunsuke Fukuda, Kyohei Lee, Alan 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 Oda, Naoki Ishi, Tsutomu Morimoto, Takao Sudou, Takayuki Tabata, Hitoshi Kawabe, Shunsuke Fukuda, Kyohei Lee, Alan Hu, Qing |
| author_sort | Oda, Naoki |
| collection | MIT |
| description | This paper describes a real-time transmission-type Terahertz (THz) microscope, with palm-size THz camera and compact quantum cascade laser (QCL). The THz camera contains 320x240 microbolometer focal plane array which operates at 30 Hz frame rate and has lock-in imaging function as well as integration functions such as frame integration and spatial filter. These functions are found very powerful in improving signal-to-noise ratio. QCL is installed in compact Stirling cycle cooler. A variety of QCLs covers frequency range from 1.5 to 5 THz and provides time-average power of 0.5~2 mW. The illumination area for sample is changed by adjusting one lens in the illumination optics. Performances of the THz microscope, such as signal-to-noise ratio and so on, were measured and are found consistent with the calculations. THz images taken with the THz microscope are finally presented. |
| first_indexed | 2024-09-23T11:36:36Z |
| format | Article |
| id | mit-1721.1/87070 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:36:36Z |
| publishDate | 2014 |
| publisher | SPIE |
| record_format | dspace |
| spelling | mit-1721.1/870702022-10-01T04:45:23Z Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser Oda, Naoki Ishi, Tsutomu Morimoto, Takao Sudou, Takayuki Tabata, Hitoshi Kawabe, Shunsuke Fukuda, Kyohei Lee, Alan Hu, Qing Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Hu, Qing Lee, Alan This paper describes a real-time transmission-type Terahertz (THz) microscope, with palm-size THz camera and compact quantum cascade laser (QCL). The THz camera contains 320x240 microbolometer focal plane array which operates at 30 Hz frame rate and has lock-in imaging function as well as integration functions such as frame integration and spatial filter. These functions are found very powerful in improving signal-to-noise ratio. QCL is installed in compact Stirling cycle cooler. A variety of QCLs covers frequency range from 1.5 to 5 THz and provides time-average power of 0.5~2 mW. The illumination area for sample is changed by adjusting one lens in the illumination optics. Performances of the THz microscope, such as signal-to-noise ratio and so on, were measured and are found consistent with the calculations. THz images taken with the THz microscope are finally presented. National Institute of Information and Communications Technology (Japan) 2014-05-21T19:35:15Z 2014-05-21T19:35:15Z 2012-10 Article http://purl.org/eprint/type/ConferencePaper 0277-786X http://hdl.handle.net/1721.1/87070 Oda, Naoki, Tsutomu Ishi, Takao Morimoto, Takayuki Sudou, Hitoshi Tabata, Shunsuke Kawabe, Kyohei Fukuda, Alan W. M. Lee, and Qing Hu. “Real-Time Transmission-Type Terahertz Microscope with Palm Size Terahertz Camera and Compact Quantum Cascade Laser.” Edited by Manijeh Razeghi, Alexei N. Baranov, Henry O. Everitt, John M. Zavada, and Tariq Manzur. Terahertz Emitters, Receivers, and Applications III (October 15, 2012) (Proceedings of SPIE; volume 8496). © (2012) SPIE. https://orcid.org/0000-0003-1982-4053 en_US http://dx.doi.org/10.1117/12.928564 Proceedings of SPIE--the International Society for Optical Engineering 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 | Oda, Naoki Ishi, Tsutomu Morimoto, Takao Sudou, Takayuki Tabata, Hitoshi Kawabe, Shunsuke Fukuda, Kyohei Lee, Alan Hu, Qing Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title | Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title_full | Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title_fullStr | Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title_full_unstemmed | Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title_short | Real-time transmission-type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| title_sort | real time transmission type terahertz microscope with palm size terahertz camera and compact quantum cascade laser |
| url | http://hdl.handle.net/1721.1/87070 https://orcid.org/0000-0003-1982-4053 |
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