Speaker
Prof.
Innocenzo M Pinto
(University of Naples "Federico II", INFN, LVK and Centro Fermi)
Description
The structure of ternary coatings featuring minimum thermal (Brownian) noise under prescribed transmittance and absorbance constraints is investigated and found to consist of a few tapered quasi-Bragg triplets on top of an almost fixed-thickness stack of wuasi Bragg doublets using the highest contrast material pair.
The noise reduction of coatings based on aSi, TiO2::Ta2O5 and SiO2 as well as SiNx, TiO2::Ta2O5 and SiO2 at 290K, 120K and 20K is evaluated by comparison with alternative recipes.
Primary author
Prof.
Innocenzo M Pinto
(University of Naples "Federico II", INFN, LVK and Centro Fermi)
Co-author
Prof.
Vincenzo Pierro
(DING, University of Sannio at Benevento)
