Attosecond nonlinear Fourier transformation spectroscopy of CO2 in extreme ultraviolet wavelength region.
The interferometric autocorrelation functions of attosecond pulse trains in the time domain were measured by detecting CO(2) (2+) as well as the atomic and molecular fragment ions generated via two-photon absorption of intense vacuum ultraviolet-extreme ultraviolet light by CO(2). It was demonstrated that the Fourier transformation of the interferometric autocorrelation functions of the respective fragment ions appearing in a time-of-flight mass spectrum exhibit spectroscopic information in the frequency domain corresponding to the two-photon photofragment excitation spectra of CO(2) and the double ionization excitation spectrum to form CO(2) (2+).
Okino
Tomoya
T
Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanExtreme Photonics Research Group, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
Yamanouchi
Kaoru
K
Shimizu
Toshihiko
T
Ma
Ri
R
Nabekawa
Yasuo
Y
Midorikawa
Katsumi
K