Description
The problem of mitigating scattered light noise within interferometer arm
tubes has been addressed via the insertion of baffles that intercept the
stray rays which after interacting with the tube walls may be reinjected in
the Fabry-Perot resonator, carrying the vibrational noise of the walls.
Such a problem has been dealt with conical, serrated, baffles that may
still be source of noise due to diffraction at their edges. Recently,
helical baffles have been proposed, showing that diffraction is reduced and
mechanical construction easier, not needing serration.
Primary authors
Stefano Selleri
Riccardo DeSalvo
(University of Utah)
