Speaker
Peter Fritschel
(M.I.T.)
Description
The MIT coating thermal noise (CTN) facility can measure the thermal noise of mirror coatings by probing the phase fluctuations between orthogonal spatial modes in a short, folded Fabry-Perot cavity. Previously this instrument has measured the thermal noise of the coatings used in LIGO, with high signal-to-noise ratio in the frequency band of 30 Hz to 3000 Hz. This talk will review some interesting recent measurements made both on amorphous and crystalline coatings.
Author
Peter Fritschel
(M.I.T.)
Co-authors
Nicholas Demos
(MIT)
Slawek Gras
(MIT)