All-optical saddle trap
The superposition of frequency-shifted Laguerre-Gauss modes can produce a rotating saddlelike intensity profile. When spinning fast enough, the optical forces produced by this structured light saddle generate a dynamically stable equilibrium point capable of trapping nanoparticles in a high vacuum, akin to a Paul trap but with its unique characteristics. We analyze the stability conditions and center-of-mass motion, dynamics and cooling of a nanoparticle levitated in the optical saddle trap. We expect the optical saddle to find applications in levitated optomechanics experiments requiring fast parametric modulation and inverted squeezing potential landscapes.
Authors
- Joanna A. Zielińska (ORCID: https://orcid.org/0000-0002-5711-1401)
- Thiago Guerreiro (ORCID: https://orcid.org/0000-0001-5055-8481)
- Daniel Tandeitnik (ORCID: https://orcid.org/0000-0003-3276-9335)
- Oscar Kremer (ORCID: https://orcid.org/0000-0003-4692-6274)
- Felipe Almeida (ORCID: https://orcid.org/0000-0002-8205-9553)
- A. Z. Khoury (ORCID: https://orcid.org/0000-0002-7487-5067)
Institutions
- Universidade Federal Fluminense (BR)
- Pontifícia Universidade Católica do Rio de Janeiro (BR)
- University College London (GB)
- Tecnológico de Monterrey (MX)
Publication Details
- Journal
- Physical Review Applied
- Published
- 2024-10-28
- DOI
- https://doi.org/10.1103/physrevapplied.22.044073
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
- Instituto Serrapilheira
- Engineering and Physical Sciences Research Council