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

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 languageEnglish
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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