Microwave

Quantum mechanics

Metallurgy

Materials science

Ferromagnetism

Coupling (piping)

Plasma

Phonon

Quantum optics

Magnon

Optomechanics

Photonics

Photon

Quantum sensor

Physics

Optics

Quantum network

Resonator

Condensed matter physics

Quantum

Optical physics

Quantum information

Optoelectronics

Physical Review Letters

Mechanical degrees of freedom, which have often been overlooked in various quantum systems, have been studied for applications ranging from quantum information processing to sensing. Here, we develop a hybrid platform consisting of a magnomechanical cavity and an optomechanical cavity, which are coherently coupled by the straightway physical contact. The phonons in the system can be manipulated either with the magnetostrictive interaction or optically through the radiation pressure. Together with mechanical state preparation and sensitive readout, we demonstrate the microwave-to-optical conversion with an ultrawide tuning range up to 3 GHz. In addition, we observe a mechanical motion interference effect, in which the optically driven mechanical motion is canceled by the microwave-driven coherent motion. Manipulating mechanical oscillators with equal facility through both magnonic and photonic channels enables new architectures for signal transduction between the optical, microwave, mechanical, and magnetic fields.

Coherent Coupling between Phonons, Magnons, and Photons