Speaker
Yohei Nishino
(The University of Tokyo)
Description
In interferometric gravitational wave detectors, quantum radiation pressure noise limits their sensitivity at low frequencies. Speed meters are one of the solutions to reduce the back-action noise. Recently, a new type of design utilizing polarization of light, the polarization circulation speed meter, has been proposed. Since this design requires only a slight modification to the conventional interferometers, it is the latest incarnation of speed meters and could be a design for the future detectors, such as Einstein Telescope. In our presentation, we review the mechanism of the polarization circulation speed meter and show details of the ongoing proof-of-principle experiment, especially how to control the speed meter interferometer.
Primary author
Yohei Nishino
(The University of Tokyo)
