BIGFOOT (Characterization)
MarcEisenmann - 11:16, Monday 17 March 2025 (3965)
moving polarizer

move polarizer to increase the difference between the various polarization states.

motorized rotator swapped from HWP to polarizer

changed positions of 2 steering mirrors

had to change fork position of 1st lens on red path : RED ALIGNMENT TO BE CHECKED AGAIN BEFORE ABSORPTION MEASUREMENT !

horizontal cut at 360,115.5,20

vertical cut at 314.5, 200,60

blades at 20 is mm from last steering mirror 200mm

DC_max = 0.232V (from powermeter)

after vertical alignment : AOI = 0.006deg

z = [120, 70, 20];

filenames = {

'Fri, Mar 14, 2025 5-56-30 PM',

'Fri, Mar 14, 2025 5-59-03 PM',

'Fri, Mar 14, 2025 6-00-48 PM'};

after horizontal alignment : AOI = 0.06deg

z = [120,70,20];

filenames ={

'Fri, Mar 14, 2025 8-28-37 PM',

'Fri, Mar 14, 2025 8-31-20 PM',

'Fri, Mar 14, 2025 8-33-13 PM'};