Year: 2024
Type: article
Abstract: 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.
Source: Physical Review Applied
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
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
Awards: G1207375514, G1840770272, G1999717978, G228631196, G2584274330, G29316538, G3025624477, Quantum Rio network, G4477946554, G5731415001, LeviNet - Levitation Network for Advanced Quantum Technologies, G6438247056, G6655350720, Nonlinear optomechanical devices as transducers for the quantum internet, G7191684251, G802135159, G8522711164, G871200192
OpenAlex ID: W4403833455