KAGRA MIR (Absorption)
MarcEisenmann - 10:47, Monday 19 February 2024 (3447)
2 inch sapphire

Removed previous sample (whie arrow on top pointing towards IU)

installed Polish-OPSH-50.8C191.7-10 with white arrow pointing towrads IU

Pt  = 27.8+/-1.0mW

Pin = 32.2+/-1.1mW

check same centering + 15mm radius map is fine

Pt = 4.88+/-0.17W

long z scan : Mon, Feb 19, 2024 10-26-35 AM.txt

Z edges : 24.5 and 36.25 mm ie _center = 30.375mm

realigned DC at Z_center

long Z scan : Mon, Feb 19, 2024 10-34-53 AM.txt with Pt = 4.88+/-0.17W

absorption ~176ppm/cm

map with 0.25mm step and 15mm radius at Z_center (20mV sensitivity)  : Mon, Feb 19, 2024 10-46-38 AM.txt