23 citations · 94 across the 17 of their papers we have counts for
6 papers · 1 filter
Kerr-Enhanced Optical Spring
Sotatsu Otabe, Wataru Usukura, Kaido Suzuki +4
We propose and experimentally demonstrate the generation of enhanced optical springs using the optical Kerr effect. A nonlinear optical crystal is inserted into a Fabry-Perot cavit…
Photothermal effect in macroscopic optomechanical systems with an intracavity nonlinear optical crystal
Sotatsu Otabe, Kentaro Komori, Ken-ichi Harada +3
Intracavity squeezing is a promising technique that may improve the sensitivity of gravitational wave detectors and cool optomechanical oscillators to the ground state. However, th…
Improving force sensitivity by amplitude measurement of light reflected from a detuned optomechanical cavity
Kentaro Komori, Takuya Kawasaki, Sotatsu Otabe +3
The measurement of weak continuous forces exerted on a mechanical oscillator is a fundamental problem in various physical experiments. It is fundamentally impeded by quantum back-a…
Quantum sensing with milligram scale optomechanical systems
Yuta Michimura, Kentaro Komori
Probing the boundary between classical and quantum mechanics has been one of the central themes in modern physics. Recently, experiments to precisely measure the force acting on mi…
Atto-Nm Torque Sensing with a Macroscopic Optomechanical Torsion Pendulum
Kentaro Komori, Yutaro Enomoto, Ching Pin Ooi +5
Precise measurements of the displacement of, and force acting on, a mechanical oscillator can be performed by coupling the oscillator to an optical cavity. Brownian thermal forces…
Demonstration of displacement sensing of a mg-scale pendulum for mm- and mg- scale gravity measurements
Nobuyuki Matsumoto, Masakazu Sugawara, Seiya Suzuki +6
Gravity generated by large masses has been observed using a variety of probes from atomic interferometers to torsional balances. However, gravitational coupling between small masse…