Title :
New features of strong-field ionization with low-frequency fields in the tunnelling regime
Author :
Dura, J. ; Camus, N. ; Thai, A. ; Britz, A. ; Hemmer, Michael ; Baudisch, M. ; Senftleben, Arne ; Ullrich, Johanna ; Moshammer, R. ; Biegert, J.
Author_Institution :
ICFO-Inst. de Cienc. Fotoniques, Castelldefels, Spain
Abstract :
The advent of mid-IR laser sources (λ ≥ 3.0 μm) permits scrutinizing strong-field photoionization of atoms and molecules deep into the tunnelling regime and unexpected features are being revealed [1]. A low kinetic energy structure (LES) was observed in the experimental photoelectron energy distribution and it was conspicuously absent in semi-classical and Keldysh-Faisal-Reiss (KFR) calculations. Further measurements are required revealing a full 3D momentum picture of the before-mentioned effects.
Keywords :
infrared spectra; laser beams; light polarisation; light sources; photoelectron spectra; photoionisation; Keldysh-Faisal-Reiss calculations; atoms; low kinetic energy structure; low-frequency fields; midinfrared laser sources; molecules; photoelectron energy distribution; semiclassical calculations; strong-field photoionization; tunnelling regime; wavelength 3.0 mum; Argon; Ionization; Kinetic energy; Lasers; Three-dimensional displays; Tunneling; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6801132
