Widely Tunable Two-Color Free-Electron Laser on a Storage Ring.


Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Wu, YK; Yan, J; Hao, H; Li, JY; Mikhailov, SF; Popov, VG; Vinokurov, NA; Huang, S; Wu, J

Published Date

  • October 26, 2015

Published In

Volume / Issue

  • 115 / 18

Start / End Page

  • 184801 -

PubMed ID

  • 26565470

Pubmed Central ID

  • 26565470

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.115.184801


  • eng