Advanced LIGO COC - Test Results

navigation
Organization
Planning
Interfaces
Design
Test Results
Schedule
Downselect
Inventories
COC home

Web page contact: 
GariLynn Billingsley
email:
Billingsley_G "at"
ligo.caltech.edu

 Also see test reports at  

Material Downselect

Scatter Characterization


Coating Development 

Q measurements and results
       MIT      Glasgow

Test substrate ilog

Cleaning

T050055-00  Advanced LIGO Coating - Cleaning tests


Sapphire Homogeneity Results
Summary of CSIRO measurements of 15 cm dia sapphire pieces
Summary of CIT measurements of 25 cm dia sapphire piece
Sapphire Axes - picture of the relative angles and faces

Light polarized parallel to the c-axis of the material experinces less inhomogeneity than perpendicular, when propogating through a or m-axis material.

Other LIGO 1 homogeneity measurements of fused silica (for comparison)


Sapphire Polishing Results
Picture of CSIRO measurements of 15 cm dia sapphire pieces
Metrology report of CSIRO polishing of 1st 15 cm dia substrate