| 用迈克尔逊干涉仪测双光源等厚干涉及其波长差 |
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| 引用本文： | 王钢,方奕忠.用迈克尔逊干涉仪测双光源等厚干涉及其波长差[J].大学物理实验,2014(6):37-40. |
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| 作者姓名： | 王钢 方奕忠 |
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| 作者单位： | 中山大学,广东 广州,510275 |
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| 基金项目： | 中山大学实验教学改革项目 |
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| 摘 要： | 利用迈克尔逊干涉仪,搭建了一个观察双光束等厚干涉条纹的实验装置,并利用该装置测量了绿色激光器与低压汞灯绿色光谱线的波长差,以及红色激光器与黄色稀土节能灯红色光谱线的波长差,实验值与光栅光谱仪的测量结果一致。该方法可推广为一种测量未知光谱线波长值的方法。
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| 关 键 词： | 迈克尔逊干涉仪 双光束干涉 衬比度 光程差 |
Observation of Double Light Source Equal Thickness Interference by Using a Michelson-interferometer |
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| WANG Gang,FANG Yi-zhong.Observation of Double Light Source Equal Thickness Interference by Using a Michelson-interferometer[J].Physical Experiment of College,2014(6):37-40. |
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| Authors: | WANG Gang FANG Yi-zhong |
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| Institution: | ( Sun Yat-sen University, Guangdong Guangzhou 510275 ) |
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| Abstract: | A device has been assembled on a Michelson-interferometer for observing the fringes of two-beam equal thickness interference. Using this device,wave-length difference between a green laser and the green spectral line of a low pressure mercury lamp,and that between a red laser and the red spectral line of a rareearth energy-saving lamp have been measured. Experimental results consist with that measured by grating spectrometer. Therefore,this new method can be used to measure the wave length of an unknown spectral line. |
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| Keywords: | Michelson-interferometer two-beam interference contrast optical path difference |
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