VIS / NIR Thin Film Plate Polarizer (TFP)
400 nm ≤ λ ≤ 2.0 µm
Thin Film Plate Polarizer coatings are applied to window substrates and are primarily for use in laser cavities. Designed to operate at Brewster’s angle, they efficiently separate an incident, unpolarized, monochromatic beam into its S and P polarization components. The extinction ratio (Tp/Ts) exceeds 200:1 in the transmitted beam. Coatings for high power wavelengths use special materials that are able to withstand higher power than standard thin film plate polarizer coatings. These all dielectric coatings are sensitive to wavelength and angle of incidence.
RMI STANDARD SPECIFICATIONS
|
| Angle of Incidence: |
Brewster’s Angle (θB) |
Reflectance:
|
Rs ≥ 99.5% |
| Transmittance: |
Tp ≥ 95% |
| Extinction Ratio: |
Avg. Tp/Ts ≥ 200:1 |
| Damage Threshold: |
10 J/cm2, 10 ns pulse |
|
Thin-Film Plate Polarizer coating sample performance curve centerd at the Nd:YAG fundamental wavelength of 1064 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.
 |
|
