Wavefront Sensing with a Coupled Cavity for Torsion-Bar Antenna
Yuka Oshima,
Satoru Takano,
Ching Pin Ooi
et al.
Abstract:Torsion-Bar Antenna (TOBA) is a ground-based gravitational wave detector using torsion pendulums. TOBA can detect intermediate-mass black hole binary mergers, gravitational wave stochastic background, and Newtonian noise, and is useful for earthquake early warning. A prototype detector Phase-III TOBA with 35 cm-scale pendulums is under development to demonstrate noise reduction. The target strain sensitivity is set to 1 × 10 −15 / √ Hz between 0.1 Hz-10 Hz. A new scheme of wavefront sensing with a coupled cavi… Show more
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