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Phase Retarding Mirror (PRM) Print E-mail

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
Design Wavelength: 10.6 µm
Angle of Incidence: 45º
Reflectance: R ≥ 98.5%
Retardation:
 
Standard:
 0: 0º ± 6º
λ/8: 45º ± 3º
λ/4: 90º ± 6º
Precision: 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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