Air Spaced Zero Order Waveplate is constructed by two quartz plates installed in a mount, to form a air gap between the two quartz plates. The difference in thickness between the two plates determines the retardation. Zero order waveplates offer a substantially lower dependence on temperature and wavelength change than multiorder waveplates.
Features: Air Spaced Thickness 1.5~2mm Double Retardation Plates Broad Spectral Bandwidth Wide Temperature bandwidth Hight Damage Threshold AR coated and Mounted |
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Item No :
WPAProduct Origin :
FuZhouSpecifications:
Material:
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Quartz
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Diameter Tolerance:
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+0.0, -0.1mm
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Wavefront Distortion :
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λ/8 @ 632.8nm
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Retardation Tolerance:
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λ/300
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Parallelism:
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<1 arc second
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Surface Quality:
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20/10
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Clear Aperture:
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>90%
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Coating:
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S1&S2: R<0.2% @ wavelength
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Standard wavelength:
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266nm, 355nm,532nm, 632.8nm, 780nm,808nm, 850nm, 980nm,1064nm, 1310nm, 1480nm, 1550nm
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Standard Products:
Half Waveplates P/N#
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Quarter Waveplates P/N#
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Diameter(mm)
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WPA210
|
WPA410
|
10.0
|
WPA212
|
WPA412
|
12.7
|
WPA215
|
WPA415
|
15.0
|
WPA220
|
WPA420
|
20.0
|
WPA225
|
WPA425
|
25.4
|
WPA230
|
WPA430
|
30.0
|
Technical Advantages of Air Spaced Zero-Order Waveplate:
The air spaced zero-order waveplate achieves zero-order phase retardation through the combination of birefringent materials and an air gap, offering notable technical advantages: its adhesive-free air-spaced structure eliminates the temperature sensitivity and dispersion effects of optical adhesives, supporting operation across a wide temperature range of -40℃ to 100℃ with phase retardation variation <3%. It achieves λ/100-level precision (phase error <1%) across a broad 400-2000nm spectral range, with low dispersion characteristics minimizing wavelength dependence. The air-spaced design increases the laser damage threshold to >10 J/cm² (1064nm, 10ns), making it suitable for high-power applications.In femtosecond laser chirp compensation systems, its zero-order retardation and low dispersion characteristics ensure polarization state stability for 800nm pulsed light, enabling pulse width compression to within 50fs. In astronomical spectrometers, its wide-temperature stability and high-precision phase control limit polarization measurement errors to below 1.5%, facilitating accurate analysis of stellar magnetic field polarization characteristics.