2ITM03 Input Test Mass for 2K interferometer

Back to Index of all LIGO COC
This web site is for posting useful documents related to the LIGO Core Optic Components design. The documents are for LIGO internal use only.
GariLynn Billingsley is the moderator of content. Last updated June 26, 2003
Transmission
Side 1 T=0.0282
Side 2 T=.9940 (R=600ppm)

Bulk Absorption
Not measured directly. Extrapolation from OH content (244ppm): 3 ppm/cm

Phase map data (about phase map format and filenames)
CIT Data covers the center 150mm
2ITM03-0, Dataset has Tilt and Power subtracted (Z1, Z2 & Z3), there are no missing data points within the set
Z36_2ITM03-0 Zernike Coefficients for this data set (about Zernike Coeffs, we use the Wyko definitions)
Radius of curvature: See last column at Index

Off Axis Phase map data
CIT Data covers 150 mm centered at 33.5334 mm to the right of center along the x axis when viewed facing side one with the thin side up ( -0 data set)
2ITM03-OA Dataset has Tilt and Power subtracted (Z1, Z2 & Z3), there are no missing data points within the set

Physical configuration: See drawings at Index
Nominal: 25cm x 10 cm
Wedge: 0º34' Installed with the thick side up - this orientation corresponds to the - 180º phase map designated -180

Image of the dataset 2ITM03-0