UV Thin Film Plate Polarizer (TFP)
248 nm ≤ λ ≤ 400 nm
Thin Film Plate Polarizer coatings were developed specifically for use in high power UV and Excimer laser applications. Designed to operate at Brewster’s angle, these coatings separate an incident, unpolarized, monochromatic beam into its S and P polarization components. The extinction ratio (Tp/Ts) exceeds 100:1 in the transmitted beam. The Excimer coatings are able to withstand the corrosive properties of Excimer gases, thus are well suited for intracavity applications. These all
dielectric coatings are sensitive to wavelength and angle of incidence.
RMI STANDARD SPECIFICATIONS
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| Angle of Incidence: |
Brewster’s Angle (θB) |
| Reflectance: |
Rs > 99% |
| Transmittance: |
Tp ≥ 95% |
| Extinction Ratio: |
Tp/Ts ≥ 100:1 |
| Damage Threshold: |
3 J/cm2, 10 ns pulse |
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UV Thin-Film Plate Polarizer sample curve centered at the Nd:YAG fourth harmonic at 266 nm. The curve represents a general shape for this coating. RMI will design a custom coating for your application. Please call (303) 664-5000 to discuss your coating requirements.
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