Tandeitnik, Daniel;
Kremer, Oscar;
Almeida, Felipe;
Zielińska, Joanna A;
Khoury, Antonio Zelaquett;
Guerreiro, Thiago;
(2024)
All-optical saddle trap.
Physical Review Applied
, 22
(4)
, Article 044073. 10.1103/physrevapplied.22.044073.
Preview |
Text
PhysRevApplied.22.044073.pdf - Published Version Download (5MB) | Preview |
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.
| Type: | Article |
|---|---|
| Title: | All-optical saddle trap |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/physrevapplied.22.044073 |
| Publisher version: | http://dx.doi.org/10.1103/physrevapplied.22.044073 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Education UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > Centre for Languages and Intl Educatn |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10199732 |
Archive Staff Only
 |
View Item |
