<< To get the extremely high-resolution images vital to study new materials, microbes, and more, scientists often build microscopes based on optical vortices. >>
AA << devised a way to make optical vortices with 1000 times more power than previous methods. Their design uses strong, nonuniform magnetic fields to control plasmas, or ionized gases, to create the vortices. >>
US Department of Energy. Magnetized plasmas that twist light can produce powerful microscopes and more. May 7, 2018.
https://m.phys.org/news/2018-05-magnetized-plasmas-powerful-microscopes.html
Kenan Qu, Qing Jia, Nathaniel J. Fisch. Plasma q-plate for generation and manipulation of intense optical vortices. Phys. Rev. E 96, 053207. doi: 10.1103/PhysRevE.96.053207. Nov 28, 2017.
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.96.053207