| 摘要 |
The invention concerns a polarimeter (31) and a method for measuring a light beam polarisation states. Said polarimeter comprises a prism (32) for separating the incident light beam (21) having a Stokes vector (S) into a reflected beam (22) and a transmitted beam (23), the prism not inducing any interferential effect and the transmitted beam being subjected to at least a reflection internal to the prism. The polarimeter also comprises two final separators (3, 4) for separating respectively each of the reflected beam and the transmitted beam into at least two final beams (25-28), detecting means (5-8) for measuring the intensity levels of the final beams and a processing unit (9) producing the Stokes vector of the light to be measured. Preferably, the reflections internal to the prism (32) are either total reflections, or reflections on a thick absorbing layer.
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