2 combinations of voltages of 2LC which produce polarized light with ellipticity<=2.5deg and with difference in azimuth angle>=40deg were sorted out. The voltages set applied to both LC simultaneously is 104. I was previously doing a scan from 0-3.5V with 0.1V step, which for 2 LC were 1296 sets of voltages. So now we have ~10 times less voltage sets. This will result in faster evaluation.

They are saved here:

C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Scan voltage\LinearPolvoltage.txt

The linear Polarization was generated from the most recent calibration in elog 3611 (100 avg:C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Polarization states\20240613\Fri, Jun 14, 2024 10-54-07 PM.txt)

The Labview "Complete Integratino-FileChoice" which can run voltages from a file was updated to match the needs similar to "Complete Integrated Dual Step.VI"

The file was chosen in labview and was run with 10 averaging for 10 iterations.

The AlGaAs was rotated past 45deg of incidence and measured using linear polarization (obtained above) as input:

@220 deg:

C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Coating measurement\AlGaAs\20240701\220 deg\Tue, Jul 23, 2024 4-52-36 PM.txt

At this position, the alignment in height was not changed, but it seems the beam was not centered at the camera (perhaps the power was 1.7mW and now it is 1.4mW)