Analysis of cement refractive index effect on Glan-Thompson prism
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1.
Shandong Provincial Key Laboratory of Laser Polarization and Information, Qufu 273165, China;
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2.
Institute of Laser Research, Qufu Normal University, Qufu 273165, China
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Corresponding author:
WU Fuquan, fqwu@mail.qfnu.edu.cn
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Received Date:
2014-01-10
Accepted Date:
2014-03-24
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Abstract
In order to analyze effect of refractive index of cement on a Glan-Thompson prism, the field angle of the prism and the relationship between the transmittance of the prism and refractive index of the cement at normal incidence or oblique incidence were obtained after theoretical analysis. On this basis, for several Glan-Thompson prisms which the ratio of length to aperture was determined, the relation curve of field angle and transmittance with the change of refractive index of cement was drawn by means of computer simulation. It is found that with the different ratios of length to aperture, the maximum field angle of the prism is different corresponding to different refractive index of cement. The prism has the maximum transmittance when refractive index of the cement is equal to the main refractive index of e light wave. Due to the mutual restraint relationship of the ratio of length to aperture, the largest field angle, the transmittance and the refractive index, It is optimum when the ratio of length to aperture is 2.5 and the refractive index of the cement is in the range from 1.45 to 1.46. The result is helpful for optimizing the field angle and transmittance of a Glan-Thompson prism.
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References
|
[1]
|
TANG H J, WU F Q, DENG H Y.Transmittance comparison of Glan-Taylor prism and Glan-Foucault prism[J].Laser Technology,2006,30(2):215-217(in Chinese). |
|
[2]
|
WANG H F,WU F Q.Research on refractive index of optical cement used in Glan-Thompson prisms[J].Chinese Optics Letters,2007,5(2):108-110. |
|
[3]
|
LI J L, WANG Y W, LI Y H, et al. Research on performance of calcite crystals polarizing device[J].Journal of Synthetic Crystals, 2002,31(4):413-416(in Chinese). |
|
[4]
|
LI G H.Optics[M].Ji'nan:Shandong Education Press,1991:405(in Chinese). |
|
[5]
|
XIA W, HU H N.Development of machining technique for iceland spar crystal[J]. Optical and Precision Engineering,1995,3(1):1-6(in Chinese). |
|
[6]
|
GAO H G, PEI Q K.The produetion technique for Glan-Thompson calcite prisms[J].Optical Instrument,1994,16(1):30-36(in Chinese). |
|
[7]
|
REN Sh F,WU F Q.Design of bireflective parallel beam-splitting polarization prisms combined of iceland and glass[J].Laser Technology,2012,36(5):686-689(in Chinese). |
|
[8]
|
QI X,WU F Q, HAO Zh R.Effect of misalignment of the crystal optical axis on the per-formance of a Glan-Thompson prisms[J].Laser Technology,2011,35(6):775-777(in Chinese). |
|
[9]
|
WANG H F,WU F Q,HAO D Zh,et al.Analysis on membrane effect of cement used in Glan-Thompson prisms[J].Journal of Qufu Normal University, 2008,34(1):73-77(in Chinese). |
|
[10]
|
LI J Zh.Handbook of optics[M].Xi'an:Science and Technology Press,1986:506-512(in Chinese). |
|
[11]
|
CAI L Zh.Optics[M].3rd ed.Beijing:Science Press,2007:119-126(in Chinese). |
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