Variable-period permanent-magnet helical undulator

by Jungho Mun, Young Uk Jeong, Nikolay A. Vinokurov, Kitae Lee, Kyu-Ha Jang, Seong Hee Park, Min Yong Jeon, Sang-In Shin
Published 2014-08-01

Polarization control of a free-electron laser oscillator using helical undulators of opposite helicities

by Jun Yan, Hao Hao, Senlin Huang, Jingyi Li, Vladimir N. Litvinenko, Peifan Liu, Stepan F. Mikhailov, Victor G. Popov, Gary Swift, Nikolay A. Vinokurov, Ying K. Wu
Published 2020-06-01