2023/11/23 by Stefan Lindner, Lindner, Stefan, Paul Juschitz +11 · 6 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fiber Optic Sensors #Applied Physics (physics.app-ph) #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Optics (physics.optics) #Orbital Angular Momentum in Optics #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2311.13920
openalex publication_date 2023/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Many experiments in the field of optical levitation with nanoparticles today are limited by the available technologies for particle loading. Here we introduce a new particle loading method that solves the main challenges, namely deterministic positioning of the particles and clean delivery at ultra-high vacuum levels as required for quantum experiments. We demonstrate the efficient loading, positioning, and repositioning of nanoparticles in the range of 100-755 nm diameter into different lattice sites of a standing wave optical trap, as well as direct loading of nanoparticles at an unprecedented pressure below 10-9 mbar. Our method relies on the transport of nanoparticles within a hollow-core photonic crystal fiber using an optical conveyor belt, which can be precisely positioned with respect to the target trap. Our work opens the path for increasing nanoparticle numbers in the study of multiparticle dynamics and high turn-around times for exploiting the quantum regime of levitated solids in ultra-high vacuum.