Compact vacuum levitation and control platform with a single 3D-printed fiber lens
arXiv:2504.15734 · doi:10.1364/PRJ.569207
Abstract
Levitated dielectric particles in a vacuum have emerged as a new platform in quantum science, with applications ranging from precision acceleration and force sensing to testing quantum physics beyond the microscopic domain. Traditionally, particle levitation relies on optical tweezers formed by tightly focused laser beams, which typically require multiple bulk optical elements aligned in free space, limiting robustness and scalability of the system. To address these challenges, we employ a single optical fiber equipped with a high numerical aperture (NA) lens directly printed onto the fiber facet. This enables a compact yet robust optical levitation and detection system composed entirely of fiber-based components, eliminating the need for complex alignment. The high NA of the printed lens allows stable single-beam trapping of a dielectric nanoparticle in a vacuum, even while the fiber is in controlled motion. The high NA also allows for collecting scattered light from the particle with excellent collection efficiency, thus enabling efficient detection and feedback stabilization of the particle's motion. Our platform paves the way for practical and portable sensors based on levitated particles and provides simple yet elegant solutions to complex experiments requiring the integration of levitated particles.
References in corpus (29)
- Motional Quantum Ground State of a Levitated Nanoparticle from Room Temperature
- Sub-Kelvin Parametric Feedback Cooling of a Laser-Trapped Nanoparticle
- Cavity optomechanics using an optically levitated nanosphere
- Toward Quantum Superposition of Living Organisms
- Measurement-based quantum control of mechanical motion
- Levitodynamics: Levitation and control of microscopic objects in vacuum
- Real-time optimal quantum control of mechanical motion at room temperature
- Zeptonewton force sensing with nanospheres in an optical lattice
- Quantum control of a nanoparticle optically levitated in cryogenic free space
- Measurement and control of a mechanical oscillator at its thermal decoherence rate
- Thermal nonlinearities in a nanomechanical oscillator
- Quantum Superposition of Massive Objects and Collapse Models
- Cold Damping of an Optically Levitated Nanoparticle to micro-Kelvin Temperatures
- Simultaneous ground-state cooling of two mechanical modes of a levitated nanoparticle
- Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures
- Sensing of Static Forces with Free-Falling Nanoparticles
- Searching for new physics using optically levitated sensors
- Optimal Feedback Cooling of a Charged Levitated Nanoparticle with Adaptive Control
- Force sensing with an optically levitated charged nanoparticle
- Optimal Position Detection of a Dipolar Scatterer in a Focused Field
- Long distance manipulation of a levitated nanoparticle in high vacuum
- Near-field coupling of a levitated nanoparticle to a photonic crystal cavity
- Extending vacuum trapping to absorbing objects with hybrid Paul-optical traps
- High sensitivity, levitated microsphere apparatus for short-distance force measurements
- Microscopic 3D printed optical tweezers for atomic quantum technology
- Vacuum levitation and motion control on chip
- Dark Matter Searches with Levitated Sensors
- Phase sensitive detection of dipole radiation in a fiber-based high numerical aperture optical system
- Enhanced optomechanical coupling between an optically levitated particle and an ultrahigh Q optical microcavity