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

fYear

2013

fDate

12-16 May 2013

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOE-IQEC.2013.6801132

Filename

6801132