20mm ZO Crystalline quartz waveplates 14WPZO.2-940-20
Waveplates are made from materials which exhibit birefringence. The velocity of the extraordinary and ordinary rays through the birefringent material varies inversely with their refractive indices. This difference in velocities gives a rise to phase difference when two beams recombine. At any specific wavelength the phase difference is governed by the thickness of the retarder - waveplate. ZO waveplate is constructed by two quartz plates with their fast axis crossed. The difference in thickness between the two plates determines the retardance.
- Waveplate Type: Zero Order
- Material: Quartz
- Mounting: Mounted
- Shape: Round
- Size: 20 mm
- Center Wavelength: 940 nm
- Retardation: Lambda/2
- Retardation Accuracy: +/- Lambda/500
- Wavefront Distortion: <= Lambda/8
- Surface Quality (Scratch-Dig): 20-10
Standa is offering wide range of Zero Order (ZO), Low Order (LO)waveplates for UV,VIS,NIR range (for any wavelength in 240-2600 nm range). Air-spaced ZO waveplates for high energy applications. Waveplates for many wavelengths are available from STOCK!! Dual wavelength waveplates are also available. All waveplates are AR coated and mounted by default.
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