Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 12: Quantum Optomechanics I
Q 12.3: Vortrag
Montag, 10. März 2025, 17:30–17:45, HS I
Flexible optical levitation and motion control with 3D printed fiber lenses — •Seyed Khalil Alavi1,2, Manuel Monterrosas Romero1,2, Pavel Ruchka3, Sara Jakovljević3, Harald Giessen3, and Sungkun Hong1,2 — 1Institute for Functional Matter and Quantum Technologies, University of Stuttgart, Stuttgart, DE — 2Center for Integrated Quantum Science and Technology (IQST), University of Stuttgart, Stuttgart, DE — 34. Physikalisches Institut, Research Center SCoPE and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Stuttgart, DE
Optical levitation of single nanoparticles in vacuum provides precise motion control and isolation, offering a versatile tool with applications like force sensing, and exploring macroscopic quantum mechanics. Optical levitation has been achieved using optical tweezers formed by tightly focused beams, typically requiring a high NA optical objective. This approach results in a complex and bulky apparatus with constraints in geometry and size, limiting scalability. We eliminate these constraints and ease experimental requirements by using a compact and portable trapping platform formed by a 3D-printed lens on the facet of an optical fiber, enabling simultaneous trapping and motion detection with high efficiency, a key merit for the quantum-limited control. The orientation and position of our tweezer can be adjusted by moving the fiber while trapping, allowing integration into other elements for constructing hybrid systems. Our platform paves the way for the future generation of portable quantum levitodynamics platforms.
Keywords: Optical levitation; Levitodynamics; Optomechanics; Fiber lenses