Gusi, Alberto (2025) Trapping Nanoparticles: Simulations of a Dual-Frequency Paul Trap. Bachelor's Thesis, Physics.
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Abstract
Paul traps are devices widely used in physics, from mass spectrometry to quantum computing and nanoparticle manipulation. This study investigates the optimal operational parameters, namely the voltage amplitude and frequency of the power sources, for a dual-frequency Paul trap to stably confine a charged nanoparticle. Using COMSOL Multiphysics, the electric field produced by the trap’s electrodes and the particle dynamics are simulated under varying voltage and frequency conditions. The simulations’ outcomes are compared to theoretical calculations to prove their reliability. Stable confinement in the radial plane is achieved using two power sources: one of 100 V at 20 MHz and the other in the range of 1000–1600 V at 3 kHz. Axial confinement is achieved using two endcaps electrodes, which give successful results limited to a single voltage configuration. The simulations also estimated the trap’s potential depth, reaching over 500 eV. These results support the trap’s use as a backup mechanism for optical tweezers and a basis for future multi-species trapping experiments.
| Item Type: | Thesis (Bachelor's Thesis) |
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| Supervisor name: | Hoekstra, S. |
| Degree programme: | Physics |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 04 Jul 2025 07:44 |
| Last Modified: | 04 Jul 2025 07:44 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/35771 |
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