Publications [#292653] of Ying Wu

Papers Published
  1. Wu, YK; Yan, J; Hao, H; Li, JY; Mikhailov, SF; Popov, VG; Vinokurov, NA; Huang, S; Wu, J, Widely Tunable Two-Color Free-Electron Laser on a Storage Ring., Physical Review Letters, vol. 115 no. 18 (October, 2015), pp. 184801 [doi] .

    With a wide wavelength tuning range, free-electron lasers (FELs) are well suited for producing simultaneous lasing at multiple wavelengths. We present the first experimental results of a novel two-color storage ring FEL. With three undulators and a pair of dual-band mirrors, the two-color FEL can lase simultaneously in infrared (IR) around 720 nm and in ultraviolet (UV) around 360 nm. We have demonstrated independent wavelength tuning in a wide range (60 nm in IR and 24 nm in UV). We have also realized two-color harmonic operation with the UV lasing tuned to the second harmonic of the IR lasing. Furthermore, we have demonstrated good power stability with two-color lasing, and good control of the power sharing between the two colors.