CC-POL Implementation: Analyzer
Placed interior to cyrostat in collimated beam to provide highest possible accuracy and efficiency polarimeter with no enhanced thermal background and little light loss
One analyzer made from CdSe required in collimated beam perpendicular to optical axis
Specifications
- Air gap prism
- Mechanism to insert/retract analyzer into beam
- On-axis centering ɘ.5mm
- Birefringence across 8-14mm ? 1.5% elongation of image for a Wollaston divergence of 1/8 of the array
- AR coating tests on CdSe to be made, without AR coating ~15% at each reflecting surface is lost
- Ghosting in air gap to be investigated, potentially a problem without AR coating