The beam in the reflection of beam splitter was tuned to remove the misalignment of the beam (beam height was chaning by 1cm at the end of the table). Now the beam height is same as before the BS.

I placed the Shinkosha S7 after the beam splitter reflection and before the camera. The LC voltages are changed from 0.5V - 3V with 0.25V step size, with 10 averaging.

without sample

C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Birefringence Measurements\S7\Tue, Sep 24, 2024 3-23-26 PM.txt

with S7

C:\Users\atama\Dropbox\LC-Experiment\Measurement Data\Birefringence Measurements\S7\Wed, Sep 25, 2024 10-07-47 AM.txt