Twisted Spatiotemporal Optical Vortex Random Fields

IEEE Photonics Journal

Milo Hyde¹ 

[1] Department of Engineering Physics, Air Force Institute of Technology, Dayton, OH, USA;

关键词: Light fields;    optical beams;    optical engineering;    optical propagation;    optical pulse shaping;    optical pulses;   

DOI  :  10.1109/JPHOT.2021.3066898

来源: DOAJ

【 摘 要 】

We present twisted spatiotemporal optical vortex (STOV) beams, which are partially coherent light sources that possess a coherent optical vortex and a random twist coupling their space and time dimensions. These beams have controllable partial coherence and transverse orbital angular momentum (OAM), which distinguishes them from the more common spatial vortex and twisted beams (known to carry longitudinal OAM) in the literature and should ultimately make them useful in applications such as optical communications and optical tweezing. We present the mathematical analysis of twisted STOV beams, deriving the mutual coherence function and linear and angular momentum densities. We simulate the synthesis of twisted STOV beams and investigate their free-space propagation characteristics. We discuss how to physically generate twisted STOV fields and lastly conclude with a summary and brief discussion of future research.

【 授权许可】

Unknown