Acta Optica Sinica, Volume. 17, Issue 8, 1097(1997)
A Novel Practical Quasi-Monochromatic Depolarizer
A novel quasi monochromatic depolarizerimproved Lyot depolarizer was fabricated and analysed in detail. Three conditions for effective depolarization were concluded: 1) retardance of the depolarizer should be large enough; 2) the optical pupil or the wedge angle of the crystal should be large enough; 3) angle between two crystal′s optical axes should be 45°. The experimental results indicated that, for arbitrary incident quasi monochromatic polarized light (±10 nm) ranging of 400~800 nm, the average residual polarization degree is less than 1.2% after depolarized by this depolarizer.
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[in Chinese], [in Chinese], [in Chinese]. A Novel Practical Quasi-Monochromatic Depolarizer[J]. Acta Optica Sinica, 1997, 17(8): 1097