| A holographic three-slit interferometer |
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| 引用本文： | 王丁 LI Jingsong. A holographic three-slit interferometer[J]. 重庆大学学报(英文版), 2002, 1(2): 75-77 |
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| 作者姓名： | 王丁 LI Jingsong |
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| 作者单位： | [1]CollegeofMathematicsandPhysics,ChongqingUniversity,Chongqing400044,P.R.China [2]KeyLabofOpto-electronicTechnologyandSystemsUndertheStateMinistryofEducation,ChongqingUniversity,Chongqi |
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| 摘 要： | A new type of real-time holographic three-slit interferometer is presented.It uses a calcite polarized optical element to obtain objective light and reference light to record a hologram.Its remarkable feature is to use a beam of fixed slit diffracted light as the reference light to record the lateral slit diffracted wave front,and to use also the same diffracted light as the illuminating light to reconstruct the wave front.This insures the phase distribution of the reconstructed wave front against the influence by the small natural direction drift of the laser beam and also by the tiny external vibration.The stabillity,reliability and measuring accuracy of this apparatus are improved notably.
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| 关 键 词： | 全息三缝干涉计 衍射波前 空间滤光片 光学仪器 |
A holographic three-slit interferometer |
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| WANG Ding,LI Jingsong,College of Mathematics and Physics,Chongqing University,Chongqing,P. R. China Key Lab of Opto-electronic Technology and Systems Under the State Ministry of Education,Chongqing University,Chongqing,P. R. China. A holographic three-slit interferometer[J]. Journal of Chongqing University(English Edition), 2002, 1(2): 75-77 |
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| Authors: | WANG Ding LI Jingsong College of Mathematics Physics Chongqing University Chongqing P. R. China Key Lab of Opto-electronic Technology Systems Under the State Ministry of Education Chongqing University Chongqing P. R. China |
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| Affiliation: | WANG Ding1,2,LI Jingsong1,2 1College of Mathematics and Physics,Chongqing University,Chongqing 400044,P. R. China 2Key Lab of Opto-electronic Technology and Systems Under the State Ministry of Education,Chongqing University,Chongqing 400044,P. R. China |
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| Abstract: | A new type of real-time holographic three-slit interferometer is presented. It uses a calcite polarized optical element to obtain objective light and reference light to record a hologram. Its remarkable feature is to use a beam of fixed slit diffracted light as the reference light to record the lateral slit diffracted wave front, and to use also the same diffracted light as the illuminating light to reconstruct the wave front. This insures the phase distribution of the reconstructed wave front against the influence by the small natural direction drift of the laser beam and also by the tiny external vibration. The stability, reliability and measuring accuracy of this apparatus are improved notably. |
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| Keywords: | holographic three slit interferometer diffracted wave front spatial filter |
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