Related Experiment Video
Updated: Jul 16, 2026
09:10
Fabrication and Testing of Microfluidic Optomechanical Oscillators
Published on: May 29, 2014
Thermomechanically squeezed multi-mode phonon lasers with levitated optomechanics.
Xintao Song1,2, Guoyao Li1,2, Tengfang Kuang1,2
1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China.
Nature Communications
|July 14, 2026
Summary
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.
- 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.
