Back to Search
Start Over
Structured transverse orbital angular momentum probed by a levitated optomechanical sensor
- Source :
- Nat Commun 14, 2638 (2023)
- Publication Year :
- 2022
-
Abstract
- The momentum carried by structured light fields exhibits a rich array of surprising features. In this work, we generate transverse orbital angular momentum (TOAM) in the interference field of two parallel and counterpropagating linearly-polarised focused beams, synthesising an array of identical handedness vortices carrying intrinsic TOAM. We explore this structured light field using an optomechanical sensor, consisting of an optically levitated silicon nanorod, whose rotation is a probe of the optical angular momentum, which generates an exceptionally large torque. This simple creation and direct observation of TOAM will have applications in studies of fundamental physics, the optical manipulation of matter and quantum optomechanics.
- Subjects :
- Physics - Optics
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Nat Commun 14, 2638 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2209.09759
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1038/s41467-023-38261-7