期刊
NANO LETTERS
卷 20, 期 8, 页码 6018-6023出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c02025
关键词
optical trap; hybrid Paul-optical trap; vacuum trapping; levitated nanoparticles
类别
资金
- European Research Council through grant QnanoMECA [CoG-64790]
- Fundacio Privada Cellex
- CERCA Programme/Generalitat de Catalunya
- Severo Ochoa Programme for Centres of Excellence in RD [SEV-2015-0522, FIS2016-80293-R]
- Junta de Andalucia [P18-FR-3583]
- Spanish Ministry of Economy and Competitiveness [IJCI-2015-26091, PGC2018-098770-B-I00]
- University of Granada [PPJI2018.12]
The levitation of condensed matter in vacuum allows the study of its physical properties under extreme isolation from the environment. It also offers a venue to investigate quantum mechanics with large systems, at the transition between the quantum and classical worlds. In this work, we study a novel hybrid levitation platform that combines a Paul trap with a weak but highly focused laser beam, a configuration that integrates a deep potential with excellent confinement and motion detection. We combine simulations and experiments to demonstrate the potential of this approach to extend vacuum trapping and interrogation to a broader range of nanomaterials, such as absorbing particles. We study the stability and dynamics of different specimens, such as fluorescent dielectric crystals and gold nanorods, and demonstrate stable trapping down to pressures of 1 mbar.
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