An uncoated glass surface eats 4% of your beam. Coatings decide what happens to the rest — and how much power they can survive.
Wavelength coverage runs from UV through the IR — laser lines from 193 nm to 10.6 µm — and we can computationally design your system and its coatings before a single layer is deposited.
Damage threshold is a design, not a spec line
Anti-reflection (AR) — minimizes loss; Tower standard is R < 0.25% per surface
Both change the polarization of light. Only one stays accurate when your lab warms up. Here is the difference in plain terms.
Cemented plates can delaminate. Contacted plates drift. Air spacing removes both failure modes — and improves alignment accuracy.
Tunable laser or wide spectrum? A single material can't hold retardation across hundreds of nanometers. Two materials can.
