Measurement of Coating Material Properties for the Improvement of Gravitational Wave Detectors
Date: February 14, 2013
Time: 1:00 pm
Presents: Dr. Matt Abernathy
Location Details: Cavalry CGWA Conference Room
The sensitivity of interferometric gravitational wave detectors is limited by the Brownian thermal noise from the optical mirror coatings used in the detector. Predicting and reducing this noise source requires good knowledge of the coating mechanical properties; including the Young's modulus, Poisson's ratio, mechanical loss angle, and thermal expansion coefficient. This talk explains the importance of knowing these values and describes some recent measurements.