General Optics
Absorbing Thin-Film Reflector (ATFR)
Protect a CO2 laser from back reflections that can cause instability and damage when cutting highly reflective metals with this mirror that acts as an optical isolator.
This Cu mirror has a polarization-sensitive thin-film coating that reflects s-polarization and absorbs p-polarization. When used before a reflective phase retarder it will effectively block light returned from the process from reaching the laser.
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Absorbing Thin-Film Reflector Specifications
Select the size you require. Note that it must be positioned before the reflective phase retarder, and at an angle where it sees the incident beam as s-polarized.
Model |
Diameter (mm) |
Thickness (mm) |
Reflectivity (%) at 10.6µm, |
|
S-polarization |
P-polarization |
|||
682239 |
38.1 |
4.06 |
≥ 99.0 |
≤ 1.5 |
432326 |
50 |
10 |
||
160586 |
50.8 |
9.53 |
||
504774 |
57.15 |
31.75 |
||
728695 |
60 |
15 |
||
255328 |
76.2 |
12.7 |
||
