Speaker
Description
One of the most exciting discoveries of this century was the direct detection of the gravitational waves (GWs) with the Advanced LIGO and Advanced Virgo experiments. The frontier of gravitational wave science is gradually transitioning from the first detection phase to precision verification phase with statistics of gravitational wave events. Taiwan-LIGO instrumentation group have joined LIGO scientific collaboration(LSC) since 2021. In particular, we are contributing the calibration and coating activity. In the recent study, we are studying the new sensing function for O5 season. In O5 season, LIGO plan to operate the interferometer with large detuning and homodyne detection angle. To calibrate these detector response, we need to improve the sensing function based on quantum model with two-photon formalism. We also develop the new technology of cryogenic coating with Low Pressure Chemical Vapor Deposition method. By collaborating with LSC, we start to develop new coating from 2024 Mar. We will introduce the latest activity of Taiwan-LIGO instrumentation in the talk.
