Keldysh-scaling in the waveform control of the dissociative ionization of D2

I. Znakovskaya*, P. Von Den Hoff, G. Marcus, S. Zherebtsov, X. Gu, Y. Deng, B. Bergues, M. J.J. Vrakking, F. Krausz, R. Kienberger, R. De Vivie-Riedle, M. F. Kling

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The transition from the multiphoton to the tunneling regime for ionization is characterized by the Keldysh γ = √ Ip/2Up parameter equation, where Up ∝ I × λ2. A value of smaller than 1 implies tunnel ionization. The scaling of the Keldysh parameter with the wavelength allows studying atomic and molecular systems deep in the tunneling regime, when mid-infrared wavelengths are applied. In the present study we used a home-built few-cycle IR light source [1] with a center wavelength at 2.1 m that is based on three OPCPA stages pumped by an optically synchronized 50 ps, 11 mJ Nd:YLF laser. Difference frequency mixing is employed for generating the IR seed, resulting in a signal that is self CEP-stabilized without the need for an active feed-back loop. The quality of the self-stablization of the CEP was demonstrated by imaging the directional control of the electron emission in the photoionization of xenon [2].

Original languageAmerican English
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany
Duration: 22 May 201126 May 2011

Publication series

Name2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011

Conference

Conference2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
Country/TerritoryGermany
CityMunich
Period22/05/1126/05/11

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