21 October 1999 Phase-matched high-order-harmonic generation by self-guided intense femtosecond laser pulses
Author Affiliations +
We describe the phase-matched high-order-harmonic generation of femtosecond Ti:sapphire laser pulses in a self-guiding channel. Generation efficiency of the high-order harmonic was improved by phase-matched propagation in the guiding channel. The harmonics around the 49th harmonic (16 nm) were enhanced by two orders of magnitude compared to those in the plateau with a 7-mm-long, self-guided pulse in Ne. High- harmonic conversion efficiency of 10-6 was obtained, producing > nJ harmonics in the cutoff region around the 49th harmonic. The results are well explained by considering both the intrinsic phase based on the single-atom response and the macroscopic phase matching in the high-intensity interaction region.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Katsumi Midorikawa, Katsumi Midorikawa, Yusuke Tamaki, Yusuke Tamaki, Jiro Itatani, Jiro Itatani, Minoru Obara, Minoru Obara, "Phase-matched high-order-harmonic generation by self-guided intense femtosecond laser pulses", Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); doi: 10.1117/12.366683; https://doi.org/10.1117/12.366683

Back to Top