Abstract
Vortex beams have attracted great attention due to their promising applications in the fields of high-ca-pacity optical communication,optical micromanipulation,and quantum information processing.Here,we demon-strate vortex beams with flexible control of the topological charge and modes in a carbon dots random laser for the first time.Vortex beams with different types,including the Laguerre-Gaussian(LG),Bessel-Gaussian(BG),LG-su-perposition,and polarized vortex beams with topological charges up to 50,have been successfully achieved.More-over,vortex beams can be well realized in carbon dots random lasers with different emission wavelengths cover-ing from 465 to 612 nm.This work would not only enrich the types of vortex laser,especially for solution-process-able lasers,but also provide a new route to realizing multi-color and wavelength-tunable vortex lasers.
基金项目
Science and Technology Major Project of Henan Province(221100230300)
维普
万方数据