| 光谱学与光谱分析 |
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| Nonlalocalized Interference in Multiple-Beam Interferometer |
| CHEN Hai-liang1, LI Shu-guang1，2, WANG Suo-ming1, SUN Xin1, LI Xing-yuan1, ZHU Er-kuang1 |
1. College of Science, Yanshan University, Qinhuangdao 066004, China
2. Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China |
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Abstract The authors studied the nonlocalized interference in multiple-beam interferometer. The light intensity distribution function was obtained. The result shows that the function in the circle center has the same form with localized interference. Numerical simulation method was used to analyse the light intensity distribution function. As the reflection coefficient increases, the stripe becomes sharp, Resolution ratio was improved, while the noise occured around the lower interference index. The noise becomes obviously as the reflection coefficient increases. While changing the receiving screen distance, the simulation result shows that linear relationship exists between inteference index and cosine value of interference stripe dip angle. The mirror spacing can be obtained through the straight line slope. With changing the mirror spacing, the numerical simulation result shows that linear relationship exists between interference index and stripe radii square. The straight slope shows a linear relationship with the mirror spacing.
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Received: 2013-03-29
Accepted: 2013-06-20
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Corresponding Authors:
CHEN Hai-liang
E-mail: hlchen@ysu.edu.cn
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