| 摘要 |
<p>The invention concerns a polarimetric optical detector comprising: a first active photoconductor sensing element (1) with which is associated a first diffraction grating (3) for coupling an incident light of a first polarising direction detected in the first sensing element and enabling the latter to detect the light having said first polarising direction; a second active photoconductor sensing element (1') with which is associated a second diffraction grating (3') for coupling an incident light of a second polarising direction in the second sensing element and enabling the latter to detect the light having said second polarising direction. Further, a detector (2) is provided for eliminating background noise detected by the previous detectors.</p> |
