法布里-珀罗干涉仪测平板玻璃折射率的方法研究
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摘要
根据光线在法布里-珀罗干涉仪中的传播特点,提出了测量平板玻璃折射率的方法 .首先对法布里-珀罗干涉仪中插入平板玻璃前、后所产生的相邻等倾干涉亮纹直径平方的差值和法布里-珀罗干涉仪内、外介质的折射率之间的关系分别进行了理论分析;然后搭建实验光路,使用移测显微镜对干涉亮纹直径进行观察和测量,在平板玻璃厚度已知的前提下,即可得出平板玻璃的折射率,且实验中观察到的现象和测量结果与理论分析相吻合.
According to the propagation characteristics of light in Fabry-Perot interferometer(FP),a new method for measuring the refractive index of plate glass was presented.And the dependences of the difference between diameter squares of adjacent bright fringes of equal inclinationon the refractive index of the medium inside and outside the F-P interferometer were analyzed theoretically before and after inserting flat glass into the F-P interferometer.When the thickness of the flat glass was known,the refractive index of the flat glass could be calculated by measuring the diameters of bright fringes with reading microscope.The phenomena observed in the experiment and the measurement results were consistent with the theoretical analysis.
According to the propagation characteristics of light in Fabry-Perot interferometer(FP),a new method for measuring the refractive index of plate glass was presented.And the dependences of the difference between diameter squares of adjacent bright fringes of equal inclinationon the refractive index of the medium inside and outside the F-P interferometer were analyzed theoretically before and after inserting flat glass into the F-P interferometer.When the thickness of the flat glass was known,the refractive index of the flat glass could be calculated by measuring the diameters of bright fringes with reading microscope.The phenomena observed in the experiment and the measurement results were consistent with the theoretical analysis.
引文
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[13]王菁,李朝荣,裴朝,等.钠光双线光谱下测量平板玻璃折射率实验的优化设计[J].物理实验,2014,34(8):25-27.
[14]万伟,周俊峰,邵剑波,等.迈克尔逊干涉仪测量平行透明物厚度或折射率[J].实验科学与技术,2011,9(2):37-39.
[15]周冀馨,王云新,张欣.基于迈克尔孙干涉的光学元件厚度测量实验装置[J].大学物理,2016,35(5):24-26.
[16]南阳,熊畅,唐芳,等.迈克耳孙干涉仪测折射率时的异常现象研究[J].大学物理,2016,35(11):52-56.
[17]汪正民.法布里-珀罗干涉仪平板间距的光学测定[J].应用光学,1983(6):7-10.
[2]姚开勋.用法布里-珀罗干涉仪测钠双线波长差[J].物理实验,1987,7(6):268-269.
[3]蒋呈阅,蔡瑞,刘劲松,等.金属网栅法布里-珀罗干涉仪测量太赫兹波波长[J].光学学报,2012,32(11):1112009-1-1112009-6.
[4]Joonyoung K,David J R,Radan S.Cavity-induced phase noise suppression in a Fabry-Perot modulator based optical frequency comb[J].Optics Letters,2017,42(8):1536-1539.
[5]米宝永.光谱范围从365~12 000nm的高精度光电自动折射仪[J].光学精密工程,1998,6(3):79-84.
[6]闫智春,段文琴,王世焯.一种光学玻璃折射率自动测量方法[J].光学机械,1987(6):39-46.
[7]沈海龙,杨观鸣.任意偏折法测量玻璃折射率[J].计量学报,1994,15(1):27-36.
[8]孟庆华,向阳.高精度测量光学玻璃折射率的新方法[J].光学精密工程,2008,16(11):2114-2119.
[9]田雁.玻璃折射率测量的改进[J].物理通报,2013(3):61-64.
[10]段丽凤.用分光计测量玻璃三棱镜折射率的方法探讨[J].大学教育,2017(5):47-48.
[11]吴林,顾去吾,史大椿.用干涉法定位测量光学玻璃的折射率[J].上海机械学院学报,1990,12(4):47-50.
[12]王菁,李朝荣,黄江,等.测量平板玻璃折射率实验中干涉条纹不清晰原因的探讨[J].大学物理,2013,32(2):47-49.
[13]王菁,李朝荣,裴朝,等.钠光双线光谱下测量平板玻璃折射率实验的优化设计[J].物理实验,2014,34(8):25-27.
[14]万伟,周俊峰,邵剑波,等.迈克尔逊干涉仪测量平行透明物厚度或折射率[J].实验科学与技术,2011,9(2):37-39.
[15]周冀馨,王云新,张欣.基于迈克尔孙干涉的光学元件厚度测量实验装置[J].大学物理,2016,35(5):24-26.
[16]南阳,熊畅,唐芳,等.迈克耳孙干涉仪测折射率时的异常现象研究[J].大学物理,2016,35(11):52-56.
[17]汪正民.法布里-珀罗干涉仪平板间距的光学测定[J].应用光学,1983(6):7-10.