Applied Physics B

, Volume 78, Issue 7, pp 863-867

First online:

High brightness harmonic generation at 13 nm using self-guided and chirped femtosecond laser pulses

  • H.T. KimAffiliated withDept. of Physics, KAIST Email author 
  • , I.J. KimAffiliated withDept. of Physics, KAIST
  • , V. TosaAffiliated withNIRDIMT
  • , Y.S. LeeAffiliated withDept. of Physics, KAIST
  • , C.H. NamAffiliated withDept. of Physics, KAIST

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We have optimized the brightness of high-order harmonics from a long neon gas jet using self-guided and chirped laser pulses. The self-guided and chirped laser pulses effectively reduced the ionization effects in space and time, producing bright high-order harmonics with narrow bandwidth. The brightness of the 61st harmonic was about 1015 W/cm2/s rad with a bandwidth of 0.7 Å.