Infrared and Laser Engineering, Volume. 49, Issue 7, 20190544(2020)
Study on depolarizers applied for a grating spectrometer
Figures & Tables(10)
Fig. 4. Relationship between residual polarization degree and wavelength
Fig. 6. Relationship between residual polarization degree and radius
Fig. 7. Relationship between residual polarization degree and polarization angle
Fig. 8. Real object and measured polarization sensitivity of depolarizer
Table 1. Polarization degrees of a H-V depolarizer
View tableView in ArticleTable 1. Polarization degrees of a H-V depolarizer
Types of incident light Stokes expression of incident light Stokes expression of output light DOP Horizontal-linear polarized light （1,1,0,0）′ （1,1,0,0）′ 1 Vertical-linear polarized light （1,−1,0,0）′ （1,−1,0,0）′ 1 45° linear-polarized light （1,0,1,0）′ （1,0, η ,0）′η −45° linear-polarized light （1,0,−1,0）′ （1,0,− η ,0）′η Left-rotated circular-polarized light （1,0,0,1）′ （1,0, 0, η ）′η Right-rotated circular-polarized light （1,0,0,−1）′ （1,0, 0, − η ）′η
Table 2. Imaging separation of different wavelengths
View tableView in ArticleTable 2. Imaging separation of different wavelengths
Wavelength/nm | n e -n o |HV_s/μm DB_s/μm 400 0.009 562 1 7.450 01 25.435 88 500 0.009 259 5 7.214 25 24.631 00 600 0.009 092 9 7.084 40 24.187 65 700 0.008 984 1 6.999 61 23.898 18 800 0.008 903 0 6.936 50 23.682 68 900 0.008 836 2 6.884 43 23.504 93
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Ting Tan, Tongzhou Wu. Study on depolarizers applied for a grating spectrometer[J]. Infrared and Laser Engineering, 2020, 49(7): 20190544
Paper Information
Category: 光学器件
Received: Nov. 10, 2019
Accepted: --
Published Online: Aug. 19, 2020
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