Share Email Print

Proceedings Paper

Nonlinear multiphoton processes with soft x-ray photons and its application to autocorrelation measurement
Author(s): Katsumi Midorikawa; Hirokazu Hasegawa; Yasuo Nabekawa
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have observed multi-photon ionization processes such as two-photon double ionization and above threshold ionization in He at 42 eV using intense soft X-ray pulses produced by high-order harmonics. Using the two-photon double ionization, the pulse width of the 27th (42 eV) harmonic was measured by an autocorrelation technique, and found it to be 8 ns. The high-intensity soft X-ray radiation achieved by phase-matched high-order harmonics enables the investigation of these nonlinear optical processes, which were beyond the reach of conventional light sources.

Paper Details

Date Published: 21 September 2005
PDF: 8 pages
Proc. SPIE 5920, Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, 592005 (21 September 2005); doi: 10.1117/12.623654
Show Author Affiliations
Katsumi Midorikawa, RIKEN (Japan)
Hirokazu Hasegawa, RIKEN (Japan)
Yasuo Nabekawa, RIKEN (Japan)

Published in SPIE Proceedings Vol. 5920:
Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications
Zenghu Chang; Stuart Kleinfelder; Dennis L. Paisley; Jean-Claude Kieffer; Jerome B. Hastings, Editor(s)

© SPIE. Terms of Use
Back to Top