Coherent optical vortex generation with multiple topological charges based on a seeded free electron laser

Sun，Hao1,2; Wang，Xiaofan3,4; Feng，Chao5; Tu，Lingjun1,2; Fan，Weijie1,2; Liu，Bo5

2021

10.1017/hpl.2021.52

High Power Laser Science and Engineering   影响因子和分区

2095-4719

2052-3289

To generate optical vortex with multiple topological charges, a simple scheme based on phase mask shaping technique is proposed and applied in a seeded free electron laser. With a tailored phase mask, EUV vortex with multiple topological charges can be produced. To prove the feasibility of this method, an eight-step phase mask is designed to shape the seed laser. The simulation results demonstrate that one hundred megawatts, fully coherent extreme-ultraviolet vortex pulses with topological charge 2 can be generated based on the proposed technique. We have also demonstrated the possibility of generating higher topological charges by using a phase mask with more steps.

Free Electron Laser High-Gain Harmonic Generation Optical vortex Phase mask

SCI ; EI

英语

其他

National Natural Science Foundation of China[12122514,11975300] ; Shanghai Science and Technology Committee Rising-Star Program[20QA1410100]

Optics

Optics

WOS:000734867600001

CHINESE LASER PRESS & CAMBRIDGE UNIV PRESS

20215011315601

Free electron lasers ; Topology ; Vortex flow

Fluid Flow, General:631.1 ; Free Electron Lasers:744.5 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4

2-s2.0-85120854808

Scopus

1.Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai,201800,China
2.University of Chinese Academy of Sciences,Beijing,100049,China
3.Institute of Advanced Science Facilities,Shenzhen,518000,China
4.Southern University of Science and Technology,College of Science,Shenzhen,518055,China
5.Shanghai Advanced Research Institute,Chinese Academy of Science,Shanghai,201210,China

Sun，Hao,Wang，Xiaofan,Feng，Chao,et al. Coherent optical vortex generation with multiple topological charges based on a seeded free electron laser[J]. High Power Laser Science and Engineering,2021,9.

Sun，Hao,Wang，Xiaofan,Feng，Chao,Tu，Lingjun,Fan，Weijie,&Liu，Bo.(2021).Coherent optical vortex generation with multiple topological charges based on a seeded free electron laser.High Power Laser Science and Engineering,9.

Sun，Hao,et al."Coherent optical vortex generation with multiple topological charges based on a seeded free electron laser".High Power Laser Science and Engineering 9(2021).