[Marc, Shalika]
windows update paused up to March 21st
CALIBRATION
decrease probe power from 5.1V to 4.2V
surface reference sample scan : Thu, Feb 15, 2024 1-35-52 PM.txt
power 26.5 mW, ziu=69.18
recovered R~14.2/W
CENTER OF THE BULK IS AT 33.3
bulk reference sample scan Thu, Feb 15, 2024 3-14-57 PM.txt
R = 0.6252 cm/W
today's sample : Polish-Opsh-25.4C19.7-10 (measured with spectrophotometer)
power transmitted 23.1 +/- 0.8 mW
input power 26.8+/-1.0 mW
z_iu = 61.96 mm
CENTER CHECK
X-338.9mm , DC=0.1865V
X=315.129mm DC=0.187
X_center=327.014mm
Y=109.393mm DC=0.186V
Y= 132.856mm, DC=0.186V
Y_center=121.124mm
z_max = 75 mm
started long z scan with long side towards readout
long z scan Thu, Feb 15, 2024 5-22-33 PM
HWp 0.7deg, Ptra=50.8+/-1.8mW
HWP-1.7deg, Ptra=96.2+/-3.3mW
HWP=10deg, Ptra=1.05W+/-0.04W
flipped mirror, long side towards input, z edges 38mm,57mm
Thu, Feb 15, 2024 6-08-29 PM.txt
HWP=15deg, Ptra=2.02+/-0.07W
long z scan, Thu, Feb 15, 2024 6-19-15 PM.
LONG Z SCAN
HWp=28deg, Ptra=4.83+/-0.17W
1st surface=38.1mm, second surface = 49.9mm : z center = 44mm
long Z scan : Thu, Feb 15, 2024 6-35-03 PM
absorption seems ~88ppm/cm
MAPPING
at Z=44mm , 7.5mm radius, 0.2mm step : Thu, Feb 15, 2024 7-00-35 PM.txt