Frequency doubled vortex beam emitter based on nonlinear Cherenkov radiation 下载 小野猫子 9 0 PDF 2021-02-01 11:02:24 In this work, we propose a new scheme to generate frequency-doubled vortex beams from a radially poled LiNbO 立即下载 微信扫一扫:分享 微信里点“发现”,扫一下 二维码便可将本文分享至朋友圈。