3 papers
gr-qc2001
Thermal noise in interferometric gravitational wave detectors due to dielectric optical coatings
Gregory M. Harry, Andri M. Gretarsson, Peter R. Saulson +9
We report on thermal noise from the internal friction of dielectric coatings made from alternating layers of Ta2O5 and SiO2 deposited on fused silica substrates. We present calcula…
gr-qc1999
Pendulum Mode Thermal Noise in Advanced Interferometers: A comparison of Fused Silica Fibers and Ribbons in the Presence of Surface Loss
Andri M. Gretarsson, Sheila Rowan, Geppo Cagnoli +5
The use of fused-silica ribbons as suspensions in gravitational wave interferometers can result in significant improvements in pendulum mode thermal noise. Surface loss sets a lowe…
physics.ins-det1999
Effect of Optical Coating and Surface Treatments on Mechanical Loss in Fused Silica
Andri M. Gretarsson, Gregory M. Harry, Steven D. Penn +3
We report on the mechanical loss in fused silica samples with various surface treatments and compare them with samples having an optical coating. Mild surface treatments such as wa…