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- Four Ranges Available: 465-610nm, 610-850nm, 700-1000nm, 1200-1650nm
- Flat Response Over Each Broad Spectral Range
- Available in 1/4 or 1/2 Wave Retardation
Unlike standard waveplates, Achromatic Waveplates provide a constant phase shift independent of the wavelength of light that is used. This wavelength independence is achieved by using two different crystalline materials to yield quarter- or half-wave retardation over a broad spectral range. The relative shifts in retardation over the wavelength range are balanced between the two birefringent materials used. The flat response of an Achromatic Waveplate is ideal for use with tunable lasers, multiple laser-line systems and other broad spectrum sources. Designed to be used at an angle of incidence of 0°, changes of ±3° will yield <1% change in the retardance. Waveplates have air spaced construction in a black anodized aluminum housing. Fast axis is marked on the mount.
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25.4mm Dia, 1/4 Wave Achromatic Waveplate, 465-610nm
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NT46-558 | $750.00 |
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25.4mm Dia, 1/2 Wave Achromatic Waveplate, 465-610nm
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NT46-559 | $750.00 |
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25.4mm Dia, 1/4 Wave Achromatic Wave Plate, 610 - 850nm
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NT63-935 | $750.00 |
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25.4mm Dia, 1/2 Wave Achromatic Wave Plate, 610 - 850nm
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NT63-936 | $750.00 |
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25.4mm Dia, 1/4 Wave Achromatic Waveplate, 700-1000nm
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NT46-560 | $750.00 |
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25.4mm Dia, 1/2 Wave Achromatic Waveplate, 700-1000nm
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NT46-561 | $750.00 |
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25.4mm Dia, 1/4 Wave Achromatic Waveplate, 1200-1650nm
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NT46-562 | $750.00 |
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25.4mm Dia, 1/2 Wave Achromatic Waveplate, 1200-1650nm
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NT46-563 | $750.00 |
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30mm Dia, 1/4 Wave Achromatic Waveplate, 465-610nm
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NT48-497 | $810.00 |
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30mm Dia, 1/2 Wave Achromatic Waveplate, 465-610nm
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NT48-498 | $810.00 |
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30mm Dia, 1/4 Wave Achromatic Waveplate, 610 - 850nm
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NT65-919 | $810.00 |
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30mm Dia, 1/2 Wave Achromatic Waveplate, 610 - 850nm
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NT65-920 | $810.00 |
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30mm Dia, 1/4 Wave Achromatic Waveplate, 700-1000nm
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NT48-499 | $810.00 |
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30mm Dia, 1/2 Wave Achromatic Waveplate, 700-1000nm
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NT48-500 | $810.00 |
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30mm Dia, 1/4 Wave Achromatic Waveplate, 1200-1650nm
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NT48-501 | $810.00 |
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30mm Dia, 1/2 Wave Achromatic Waveplate, 1200-1650nm
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NT48-502 | $810.00 |
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| Material | Crystal Quartz and MgF2 |
| Diameter | 25.4mm or 30.0mm, +0/-0.25mm (includes black anodized housing) |
| Thickness | 8.0mm ±0.15 (for 25.4mm Diameter) 6mm ±0.15 (for 30mm Diameter) |
| Clear Aperture | 11.5mm (for 25.4mm Diameter) 23.0mm (for 30.0mm Diameter) |
| Surface Quality | 20-10 |
| Retardation Tolerance | ≤1/100λ over wavelength range |
| Wavefront Distortion | 1/4λ @ 633nm |
| Parallelism | < 1 arcmin |
| Recommended Energy Limits | 2J/cm² (8ns pulse @ 1064nm) 500kW/cm² continuous λ |
| Temperature Coefficient | < 1/500λ per °C |
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