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Hybrid electro-optical trap for experiments with levitated particles in vacuum.
Dmitry S Bykov1, Maximilian Meusburger1, Lorenzo Dania1
1Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.
The Review of Scientific Instruments
|August 3, 2022
Summary
We demonstrate transferring microparticles between electric and optical traps. Feedback cooling improves transfer efficiency, enabling experiments in ultra-high vacuum and complex potentials.
Area of Science:
- Atomic, Molecular, and Optical Physics
- Nanotechnology
- Quantum Control
Background:
- Microparticle manipulation is crucial for quantum technologies and sensing.
- Combining electric (Paul) and optical traps offers versatile confinement.
- Controlling particle transfer between traps is key for advanced experiments.
Purpose of the Study:
- To investigate the transfer of a microparticle between a Paul trap and an optical trap.
- To study the effect of feedback cooling on this transfer process.
- To establish a method for experiments with optically levitated particles in complex potentials and vacuum.
Main Methods:
- Confining a microparticle in a hybrid potential using a Paul trap and a dual-beam optical trap.
- Performing particle transfer between traps at varying pressures.
- Implementing feedback cooling to influence the transfer dynamics.
Main Results:
- Successful transfer of microparticles between the Paul trap and optical trap.
- Demonstrated influence of feedback cooling on transfer efficiency.
- Characterized transfer behavior across different pressure regimes.
Conclusions:
- The hybrid trap system allows for controlled microparticle transfer.
- Feedback cooling enhances the efficiency of particle transfer between traps.
- This technique paves the way for experiments in ultra-high vacuum and complex potential landscapes.
