| Compare | Model | Drawings, CAD & Specs | Availability | Price | |||
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11B00UP.25 Thin Film Polarizer, Ultrafast, 14.3 x 28.6 mm, Rs>80%, 700-900 nm |
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$763 |
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11B00UP.26 Thin Film Polarizer, Ultrafast, 14.3 x28.6 mm, Rs>99%, 785-815 nm |
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$874 |
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| Models |
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| Size | 14.3 x 28.6 mm | 14.3 x 28.6 mm | |
| Thickness | 3.2 mm | 3.2 mm | |
| Wavelength Range | 700-900 nm | 785-815 nm | |
| Angle of Incidence | 70 ±2°, angular tuning required | 70 ±2°, angular tuning required | |
| Extinction Ratio | TP/TS >5:1 | TP/TS > 95:1 avg. | |
| Transmission | TP >96% | TP >96% avg | |
| Efficiency | TP, avg >96%, RS, avg >80% | TP, avg > 95%, RS, avg > 99% | |
| Material | Grade A N-BK7 | Grade A N-BK7 | |
| Clear Aperture | Central elliptical area, major axis ≥22.9 mm,minor axis ≥11.4 mm | Central elliptical area, major axis ≥22.9 mm, minor axis ≥11.4 mm | |
| Damage Threshold | 3 J/cm² @ 800 nm, 10 ns pulse, 10-100Hz | 3 J/cm² @ 800 nm, 10 ns pulse, 10-100Hz | |
| Surface Quality | 10-5 scratch-dig | 10-5 scratch-dig | |
| Surface Flatness | ≤λ/10 at 632.8 nm over the clear aperture | ≤λ/10 at 632.8 nm over the clear aperture | |
| Wedge | ≤3 arc min | ≤3 arc min | |
| Wavefront Distortion | ≤λ/8 at 632.8 nm over the clear aperture | ≤ λ/8 at 632.8 nm over the clear aperture | |
| Size Tolerance | ±0.13 mm | ±0.13 mm | |
| Thickness Tolerance | ±0.25 mm | ±0.25 mm |
Thin film polarizers are designed to transmit p-polarized light and reflect s-polarized light. This transmission and reflection is greatest at the angle of incidence – in this case, 70°±2°. Because of the angle tolerance, fine adjustments of the polarizer's position (angular tuning) around the angle of incidence when setting up your experiment may be required to realize optimal polarization performance.
These coatings, which are carefully placed on Grade A N-BK7 substrates that produce minimal wavefront distortion, have been specially designed to minimize pulse dispersion in ultrafast Ti:Sapphire regenerative amplifiers. Additionally, these polarizers offer damage thresholds up to 3 J/cm2 pulsed.
These rectangular polarizers can be mounted to a verity of our mounts such as
Our UP.25 coating provides maximum bandwidth and laser damage resistance. The UP.25 coating has a bandwidth of 700–900 nm and a polarization extinction of 5:1. This design also tends to support higher laser energy density.
Our UP.26 coating provides maximum polarization extinction. The UP.26 coating features a polarization extinction of 95:1 over a bandwidth of 785 to 815 nm.
Ultra-High Velocity