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Fresnel Rhombs D10mm 600-900nm λ/4 mounted

Code: 20709-006



Material BK7 Aperture Diameter 10.0mm
Wavelength Range 600-900nm Retardation λ/4
Retardation Tolerance +/-2° Flatness λ/10@632.8nm
Surface Quality 20/10 S/D Broad band AR Coating R<1%@600-900nm
Mount Mounted

Fresnel Rhombs are used to alter polarisation type of radiation. There are two full internal reflections inside a rhomb, it provide π/2 phase difference between the orthogonally polarized components of radiation. It means that if there is 45° angle between the polarization of the linearly polarized incident plane, the output beam is circularly polarized,  rhomb effect is similar to that of a quarter-waveplate. And two identical Fresnel rhombs will provide π/2 phase difference similar to that of a half-waveplate.

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