[16p-311-1~20] 3.6 Ultrashort-pulse and high-intensity lasers

▲ [16p-311-4] High-order harmonic generation by 50 mJ three-channel optical waveform synthesizer

〇(P)Bing Xue¹, Eiji J. Takahashi¹, Yuxi Fu¹, Katsumi Midorikawa¹ (1.RAP, RIKEN)

Keywords:optical waveform synthesizer, high order harmonics generation, attosecond pulse

In this work, a high-energy three-channel optical waveform synthesizer system is built up by using a CEP-stabilized Ti:sapphire laser operating at 10 Hz. By focusing the laser pulse from the synthesizer into an argon gas cell, high-flux continuum harmonics are demonstrated. The generated continuum soft-x-ray spectrum (45 ∼ 55 eV) is evaluated to > 100 nJ, which supports < 300 as transform limited pulses.