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| Code | 669740 | Type | Nanoparticle Thin Film Linear Polarizer | |
| Diameter Tolerance | +0.0/-0.2mm | Clear Aperture | 90% CA | |
| Thickness | 2.0mm | Thickness Tolerance | ±0.05mm | |
| Working Wavelength | 1500nm - 5000nm | Transmitted Wavefront Error (@633nm) | <3λ @ Ø10mm | |
| Operating Temperature | -50°C ~ 400°C | Damage Threshold | Continuous linearly polarized light perpendicular to the polarizer's transmission axis: 10 W/cm² Continuous linearly polarized light parallel to the polarizer's transmission axis: 25 W/cm² |
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| Optical Component Diameter | 12.5mm | Extinction Ratio | >1000:1@1500nm-5000nm >10000:1@2000nm-4500nm |
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| Angle of Incidence (AOI) | 0° ±20° | Surface Quality (Scratch/Dig) | 60/40 |
Diameter: 25.0 mm
High Extinction Ratio
AOI: ±20°
The LBTEK Nanoparticle Thin Film Linear Polarizer is available in diameters of 12.5 mm and 25.0 mm and can be directly installed in rotating adjustment frames. There are 14 models of nanoparticle thin film linear polarizers covering wavelength ranges from 365 nm - 395 nm to 480 nm - 5000 nm, each with different extinction ratios depending on the wavelength range.
The NIR and MIR series include 4 polarizers without glass window protection on both sides, making them thinner and unable to mark the polarization transmission axis direction on the sides. Customers are required to confirm the polarization direction by using a polarimeter and should handle these carefully.
The UV380, VIS500, VIS600, VISIR, and IR1300 series consist of 10 models, which are protected by two Schott glass (B270) layers, providing better transmitted wavefront error. The polarization transmission axis direction is marked on the side, but the working temperature and damage threshold are lower. Specific parameters can be found in the product specification sheet.
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