Volume 41 Issue 8
Sep.  2012
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Article Navigation >  Infrared and Laser Engineering  > 2012  >  41(8): 2058-2062

Liu Xiaomin, Wang Junqiao, Ma Fengying, Wu Yu, Liang Erjun, Yang Guoguang. Terahertz detecting method using multi-reflection optical lever[J]. Infrared and Laser Engineering, 2012, 41(8): 2058-2062.
Citation: Liu Xiaomin, Wang Junqiao, Ma Fengying, Wu Yu, Liang Erjun, Yang Guoguang. Terahertz detecting method using multi-reflection optical lever[J]. Infrared and Laser Engineering, 2012, 41(8): 2058-2062.
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Terahertz detecting method using multi-reflection optical lever

  • 1.

    School of Physics and Engineering,Zhengzhou University,Zhengzhou 450000,China;

  • 2.

    Key Laboratory of Broadband Optical

  • 3.

    Fiber Sensing &Communication,University of Electronics Science & Technology of China,Chengdu 610054,China;

  • Anewmicro-opticalmethodforTerahertzradiationmeasurementwaspresented,whichwas basedonopticalleverandthermalradiationdetection.Abi-materialmicrocantileverwasusedtogenerate micro-deformationcausedbyTerahertzradiantthermaleffect,andthemicro-deformationwasmeasuredby amultiplereflectionopticallevercomposedofapairofplanemirrors.ThenradiationpowerofTerahertz waveswereobtained.Micro-displacementtheoreticalresolutionofthismultiplereflectionopticallever methodcouldbelessthan1nmandameasuringsystemwassetuptoverifyit.Experimentsshowthat theoreticalresolutionofthistestsystemislessthan4nmanditsactualresolutionwaslessthan10nm. DesignsandparametersofaTerahertzdetectorbasedonthismethodweregiven.Thisapproachhadmany advantagessuchasanti-airturbulence,anti-beamcross-talk,andworkingatroomtemperature.Sothisnew methodwassuitableforrealizingminiaturizedTerahertzdetectorswiththefeaturesofuncooled,real-time, low-cost,anditwasalsoappropriateformanufacturingarraydetectorsforimagingdetection.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Terahertz detecting method using multi-reflection optical lever

  • 1. School of Physics and Engineering,Zhengzhou University,Zhengzhou 450000,China;
  • 2. Key Laboratory of Broadband Optical
  • 3. Fiber Sensing &Communication,University of Electronics Science & Technology of China,Chengdu 610054,China;

Abstract: Anewmicro-opticalmethodforTerahertzradiationmeasurementwaspresented,whichwas basedonopticalleverandthermalradiationdetection.Abi-materialmicrocantileverwasusedtogenerate micro-deformationcausedbyTerahertzradiantthermaleffect,andthemicro-deformationwasmeasuredby amultiplereflectionopticallevercomposedofapairofplanemirrors.ThenradiationpowerofTerahertz waveswereobtained.Micro-displacementtheoreticalresolutionofthismultiplereflectionopticallever methodcouldbelessthan1nmandameasuringsystemwassetuptoverifyit.Experimentsshowthat theoreticalresolutionofthistestsystemislessthan4nmanditsactualresolutionwaslessthan10nm. DesignsandparametersofaTerahertzdetectorbasedonthismethodweregiven.Thisapproachhadmany advantagessuchasanti-airturbulence,anti-beamcross-talk,andworkingatroomtemperature.Sothisnew methodwassuitableforrealizingminiaturizedTerahertzdetectorswiththefeaturesofuncooled,real-time, low-cost,anditwasalsoappropriateformanufacturingarraydetectorsforimagingdetection.

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