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Air Spaced Zero-Order Waveplates
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Specifications：
| Material | Crystal Quartz |
| Dimension Tolerance | +0/-0.25mm |
| Clear Aperture | ＞central 90% of diameter |
| Retardance accuracy | ＜λ/300 |
| Surface Quality | 20/10 |
| Wavefront Distortion | λ/10 @ 632.8nm over the clear aperture |
| Parallelism | ≤3″ |
| Coating | R＜0.25% per surface @ design wanvelength |
| Damage Threshold | 2MW/cm2,2J/cm2，10ns |
• High Damage Threshold
• Wide Temperature Bandwidth
• Broad Spectral Bandwidth
• CASTECH’s standard coatings are available
• Custom designs for other sizes and coatings are also available upon request
Order Information：
Air Spaced Zero-Order Waveplates：
| Half Waveplate | Quarter Waveplate |
| WPZA-100-1/2-λ | WPZA-100-1/4-λ |
| WPZA-127-1/2-λ | WPZA-127-1/4-λ |
| WPZA-200-1/2-λ | WPZA-200-1/4-λ |
| WPZA-254-1/2-λ | WPZA-254-1/4-λ |
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