Development of gravitational wave detectors

Kiwamu Izumi（和泉 究）
International Top Young Fellow (ITYF)

The first direct observation of gravitational waves was achieved in 2015 by the ground-based gravitational wave detectors, opening up the new astronomy branch called gravitational wave astronomy. Since then, multiple gravitational wave events were observed including the binary neutron star mergers and black hole-neutron star mergers. Besides, there has been worldwide effort to put gravitational wave detectors in space, such as LISA, to further exploit the capability of gravitational wave astronomy. I have been involved with the development of both ground-based and space-borne gravitational wave detectors, namely LIGO, KAGRA and LISA.
In this talk, I will give an overview of where we stand in gravitational wave astronomy and present the status updates on the development of some of the gravitational wave detectors. In addition, I would like to introduce our recent laboratory activities for space-borne detectors beyond LISA.

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