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Updated: Jul 16, 2026

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Published on: May 29, 2014

Thermomechanically squeezed multi-mode phonon lasers with levitated optomechanics.

Xintao Song^1,2, Guoyao Li^1,2, Tengfang Kuang^1,2

¹College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China.

Nature Communications

|July 14, 2026

Summary

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Researchers achieved classical squeezing in phonon lasers for the first time using a microscale sphere. This breakthrough in nonlinear phononics enhances mechanical oscillator performance and opens doors for precision metrology applications.

Area of Science:

Quantum Optics
Optomechanics
Condensed Matter Physics

Background:

Squeezing reduces noise in one quadrature of quantum systems, enhancing mechanical oscillator performance.
Classical squeezing of phonon lasers, mechanical analogs of optical lasers, has remained an unachieved experimental goal.

Purpose of the Study:

To experimentally demonstrate classical squeezing in a phonon laser.
To explore the potential for concurrent coherent control of multi-mode phonon lasers.

Main Methods:

Utilized a microscale sphere in a levitated optomechanical system.
Induced non-adiabatic frequency shifts via a pulse-modulated trapping laser to achieve squeezing.

Main Results:

Achieved squeezing of the fundamental-mode phonon laser by 3.15 ± 0.35 dB.

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Demonstrated simultaneous squeezing of the second-harmonic mode of the phonon laser.

Conclusions:

This work presents the first experimental realization of a squeezed nonlinear phonon laser with a larger mass under low vacuum.
The developed system offers a promising platform for nonlinear phononics research and precision metrology.