Thin Film Polarizers
Overview
Many different types of polarizers are available in the market, but only one is perfectly suitable for high power laser applications - Thin Film Polarizers. It is a component coated with dielectric multilayers with the main task being to separate vertically polarized (s-pol.) from horizontally polarized (p-pol.) light. Thin Film Polarizers complete this task with a high efficiency level due to negligible absorption within the coating, transmittance (Tp) higher than 99%, and reflectance (Rs) as high as 99.99%.
OPTOMAN will provide an optimal solution in terms of extinction ratio, angle of incidence, and damage threshold. Ion-Beam Sputtering (IBS) technology enables us to manufacture polarizers with an extinction ratio higher than 10000:1 at a 45° angle of incidence while maintaining a >18.7 J/cm2 damage threshold (1064 nm, 10 ns, 100 Hz).
Features
Extinction ratio higher than 10000:1.
The most typical value of extinction ratio we find in the market is 200:1. OPTOMAN aims for much higher values and reaches contrast of ~10000:1.
Angle of incidence 45°, 56°, 72°…
For effective and efficient adjustment, OPTOMAN polarizers are designed at 45°. In this set-up, laser beams are separated at 90°. We offer Brewster type polarizers for ultrafast applications for the highest possible extinction rate at a 72° angle.
Single wavelength, dual-wavelength and broadband polarizers
OPTOMAN polarizers cover most popular laser lines from 343 nm up to 4000 nm. Broadband configurations for femtosecond applications are also feasible.
Reflectance Rs>99.99% and transmittance Tp>99% available
What matters the most in your application? Is it Tp transmittance or Rs reflectance? Or is it extinction ratio? OPTOMAN will optimize product exactly to your needs.
Custom - Single wavelength and broadband polarizers with 343 nm up to 5000 nm range.
- Broadband configurations for femtosecond applications are also feasible.
- Custom shapes, size and material of substrate.
- Optimization for ultrafast applications.
