55 citations · 358 across the 29 of their papers we have counts for
14 papers · 1 filter
Optically tunable nonlinear mechanical damping in an optomechanical resonator
Hideki Arahari, Motoki Asano, Hiroshi Yamaguchi +1
We theoretically propose and experimentally demonstrate optically tunable nonlinear mechanical damping in a cavity optomechanical system utilizing a partly resolved sideband regime…
Synthesized Kuramoto potential via optomechanical Floquet engineering
Motoki Asano, Hajime Okamoto, Hiroshi Yamaguchi
Synchronization is a ubiquitous scientific phenomenon in various physical systems. Here, we examine the feasibility of generating multistable and dynamically tunable synchronizatio…
A fiber-type optomechanical array using high-Q microbottle resonators
Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
We demonstrate a fiber-type optomechanical array consisting of elastically interconnected silica microbottle resonators with high-Q optical and mechanical modes. In total, fifty op…
Cavity magnomechanical coupling with coupled magnon modes in a synthetic antiferromagnet
Motoki Asano, Hiroki Matsumoto, Masamitsu Hayashi +1
On-chip cavity magnomechanics is an emerging field exploring acoustic and magnonic functionalities of various ferromagnetic materials and structures using strongly confined phonons…
Quadrature skyrmions in two-dimensionally arrayed parametric resonators
Hiroshi Yamaguchi, Daiki Hatanaka, Motoki Asano
Skyrmions are topological solitons in two-dimensional systems and have been observed in various physical systems. Generating and controlling skyrmions in artificial resonator array…
Phononic-crystal cavity magnomechanics
Daiki Hatanaka, Motoki Asano, Hajime Okamoto +1
Establishing a way to control magnetic dynamics and elementary excitations (magnons) is crucial to fundamental physics and the search for novel phenomena and functions in magnetic…
The Librator: A new dynamical regime for nonlinear microelectromechanical devices
Samer Houri, Motoki Asano, Hajime Okamoto +1
We present a novel mode of operation for Duffing-type nonlinear microelectromechanical (MEMS) devices whereby a self-sustained multi-frequency output is generated. This new librato…
Non-equilibrium quadratic measurement-feedback squeezing in a micromechanical resonator
Motoki Asano, Takuma Aihara, Tai Tsuchizawa +1
Measurement and feedback control of stochastic dynamics has been actively studied for not only stabilizing the system but also for generating additional entropy flows originating i…
Near-field cavity optomechanical coupling in a compound semiconductor nanowire
Motoki Asano, Guoqiang Zhang, Takehiko Tawara +2
A III-V compound semiconductor nanowire is an attractive material for a novel hybrid quantum interface that interconnects photons, electrons, and phonons through a wavelength-tunab…
Multimode internal resonances in a MEMS self-sustained oscillator
S. Houri, D. Hatanaka, M. Asano +1
We investigate the dynamics of a microelectromechanical (MEMS) self-sustained oscillator supporting multiple resonating and interacting modes. In particular, the interaction of the…
Optically probing Schwinger angular momenta in a micromechanical resonator
Motoki Asano, Ryuichi Ohta, Takuma Aihara +3
We report an observation of phononic Schwinger angular momenta, which fully represent twomode states in a micromechanical resonator. This observation is based on simultaneous optic…
Limit cycles and bifurcations in a nonlinear MEMS oscillator with a 1:3 internal resonance. Part I: The case of a driven resonator
S. Houri, D. Hatanaka, M. Asano +2
This work investigates the behavior of an AlGaAs/GaAs piezoelectric nonlinear MEMS oscillator exhibiting a 1:3 internal resonance. The device is explored in an open-loop configurat…
Pulse-width modulated oscillations in a nonlinear resonator under two-tone driving as a means for MEMS sensor readout
Samer Houri, Ryuichi Ohta, Motoki Asano +2
A MEMS Duffing resonator is driven by two adjacent frequency tones into the nonlinear regime. We show that if the two-tone drive is applied at a frequency where a bistable response…
An opto-electro-mechanical system based on evanescently-coupled optical microbottle and electromechanical resonator
Motoki Asano, Ryuichi Ohta, Takashi Yamamoto +2
Evanescent coupling between a silica optical microbottle resonator and a GaAs electromechanical resonator is demonstrated. This coupling provides high optical sensitivity and effic…