公开(公告)号：US20220181041A1

公开(公告)日：2022-06-09

申请号：US17540479

申请日：2021-12-02

申请人： Asa Asadollahbaik

发明人： Asa ASADOLLAHBAIK ,  Simon THIELE ,  Alois HERKOMMER ,  Harald GIESSEN ,  Jochen FICK

IPC分类号： G21K1/00 ,  G21K1/06

摘要： The present disclosure relates to a rotationally symmetric dielectric structure for optical beam shaping and for trapping and manipulating individual particles and living biological cells in aqueous medium, concentrically mounted on the facet of a single-mode optical fiber, wherein the structure comprises at least three total reflection surfaces configured to split a light field emerging from the single-mode optical fiber into at least two separate light paths and wherein the at least three total reflection surfaces are further configured to bring the separate light paths together as a ring beam in a common focal point.