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Phase Retarding Mirror (PRM) |
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Phase Retarding Mirror (PRM)
2.0 µm ≤ λ ≤ 20.0 µm
Phase Retarding Mirror coatings are designed to produce a specific
phase shift between the S and P polarization components of an incident
CO2 laser beam. Coatings designed for 0º phase shift maintain the
incident polarization state in the reflected beam. Coatings designed
for λ/4 (90º) phase shift convert a linearly polarized beam into a
circularly polarized beam. Coatings designed for λ/8 (45º) phase shift
convert a linearly polarized beam into an elliptically polarized beam.
RMI STANDARD
SPECIFICATIONS
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| Design Wavelength: |
10.6 µm |
| Angle of Incidence:
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45º |
| Reflectance: |
R ≥ 98.5% |
Retardation:
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Standard:
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0: 0º
± 6º
λ/8: 45º
± 3º
λ/4: 90º
± 6º |
| Precision:
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0: 0º ± 3º
λ/8: 45º ± 1º
λ/4: 90º ± 3º |
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Last Updated ( Monday, 23 April 2007 )
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