Gain-enhanced suspended optomechanical system with tunable dissipative coupling strength

Area of Science:

• Quantum physics
• Cavity optomechanics
• Optomechanical systems

Background:

• Active cavity optomechanical systems are crucial for studying dissipative coupling in quantum physics.
• Previous work established the first active levitated optomechanical system.

Purpose of the Study:

• To report a gain-enhanced suspended optomechanical system.
• To investigate dissipative coupling between a SiN membrane and an intracavity laser.
• To explore methods for enhancing dissipative coupling.

Main Methods:

• Utilized a suspended optomechanical system with dissipative coupling.
• Investigated the influence of pumping power and beam propagation distance.
• Conducted numerical analysis to propose experimental enhancement methods.

Main Results:

• Achieved a high, tunable dissipative coupling strength.
• Identified key parameters affecting effective dissipative coupling.
• Proposed experimental strategies for coupling enhancement.

Conclusions:

• The developed system offers tunable, high dissipative coupling.
• Potential applications include quantum ground state cooling and phonon laser generation.
• The system is promising for quantum precision measurements and information processing.