{"title":"119 /spl μ m太赫兹外差成像的应用和早期结果","authors":"P. Siegel, R. Dengler","doi":"10.1109/ICIMW.2004.1422210","DOIUrl":null,"url":null,"abstract":"The authors present a description and early measurement results from a unique CW terahertz heterodyne imaging system based around two custom fabricated 2.5 THz planar Schottky diode mixers and two commercially available optically pumped far IR lasers. One laser is used for the signal beam and supplies as much as 70 mW at 2.5 THz. The other laser acts as a local oscillator source for the two mixers. The system uses the second THz mixer, a low frequency reference oscillator and a lock-in amplifier to monitor and normalise the two lasers. The system has been employed on both biological tissues as well as materials of interest to NASA space science applications. The instrumentation is briefly described and some representative images is also presented.","PeriodicalId":13627,"journal":{"name":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2004-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Applications & early results from THz heterodyne imaging at 119 /spl mu/m\",\"authors\":\"P. Siegel, R. Dengler\",\"doi\":\"10.1109/ICIMW.2004.1422210\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors present a description and early measurement results from a unique CW terahertz heterodyne imaging system based around two custom fabricated 2.5 THz planar Schottky diode mixers and two commercially available optically pumped far IR lasers. One laser is used for the signal beam and supplies as much as 70 mW at 2.5 THz. The other laser acts as a local oscillator source for the two mixers. The system uses the second THz mixer, a low frequency reference oscillator and a lock-in amplifier to monitor and normalise the two lasers. The system has been employed on both biological tissues as well as materials of interest to NASA space science applications. The instrumentation is briefly described and some representative images is also presented.\",\"PeriodicalId\":13627,\"journal\":{\"name\":\"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-09-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICIMW.2004.1422210\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIMW.2004.1422210","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Applications & early results from THz heterodyne imaging at 119 /spl mu/m
The authors present a description and early measurement results from a unique CW terahertz heterodyne imaging system based around two custom fabricated 2.5 THz planar Schottky diode mixers and two commercially available optically pumped far IR lasers. One laser is used for the signal beam and supplies as much as 70 mW at 2.5 THz. The other laser acts as a local oscillator source for the two mixers. The system uses the second THz mixer, a low frequency reference oscillator and a lock-in amplifier to monitor and normalise the two lasers. The system has been employed on both biological tissues as well as materials of interest to NASA space science applications. The instrumentation is briefly described and some representative images is also presented.
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