LIGO Document T1400717-v1

Profiles of ETM11 and ETM14, latest ETM coating by LMA

Document #:
LIGO-T1400717-v1
Document type:
T - Technical notes
Other Versions:
LIGO-T1400717-v5
22 Jan 2015, 11:34
Abstract:
The pair of ETMs coated by LMA has been delivered to Caltech and has been measured by LIGO. Characteristics of those mirrors have been studied. Overall, their performance is better than previous coatings. The spiral patterns are down by 2~4. The pair seems to degrade the CD, but the effect is tolerable.
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