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Message ID: 1479     Entry time: Tue Aug 19 09:25:19 2014
Author: Evan 
Type: DailyProgress 
Category: RefCav 
Subject: Polarization selectivity of south AlGaAs cavity 

I temporarily removed the QWP immediately before the periscope. Then I added a HWP directly in front of the vacuum chamber window.

While sweeping the laser across the south TEM00 resonances, I monitored the peak voltage of each resonance.

For this particular HWP mount, rotating the mount to 23(1) degrees produces s polarization, in the sense that placing this HWP between two PBSs causes the second PBS to reflect 100% of the beam.

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pol.pdf
Attachment 2: southpol.zip  57 kB
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