Angular instability due to radiation pressure in the LIGO gravitational-wave detector.
نویسندگان
چکیده
We observed the effect of radiation pressure on the angular sensing and control system of the Laser Interferometer Gravitational-Wave Observatory (LIGO) interferometer's core optics at LIGO Hanford Observatory. This is the first measurement of this effect in a complete gravitational-wave interferometer. Only one of the two angular modes survives with feedback control, because the other mode is suppressed when the control gain is sufficiently large. We developed a mathematical model to understand the physics of the system. This model matches well with the dynamics that we observe.
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ورودعنوان ژورنال:
- Applied optics
دوره 49 18 شماره
صفحات -
تاریخ انتشار 2010