Observation of nonsequential double ionization of helium with optical tunneling

Abstract

We have measured the ion yields for helium ionized by 120 fs, 614 nm laser pulses for intensities near ${10}^{16}$ W/${\mathrm{cm}}^{2}$. We have found that for these ultrashort pulses the ${\mathrm{He}}^{+2}$ data exhibit a feature which saturates in parallel with the ${\mathrm{He}}^{+}$ signal indicating that the ionization may proceed nonsequentially. We propose a new mechanism, which can exist only in the tunneling regime, for such nonsequential ionization.

Keywords

IonizationAtomic physicsDouble ionizationHeliumQuantum tunnellingPhysicsIonLaserOpticsCondensed matter physics

Affiliated Institutions

Lawrence Livermore National Laboratory US

Related Publications

Tunneling ionization of noble gases in a high-intensity laser field

Steven J. Augst , D. Strickland , D. D. Meyerhofer +2 more

Studies of multiphoton ionization of noble gases have been carried out using 1-\ensuremath{\mu}m, 1-ps laser pulses with intensities up to the mid- ${10}^{16}$ W/${\mathrm{cm}}^...

1989 Physical Review Letters 629 citations

Intense-Field Double Ionization of Helium: Identifying the Mechanism

Manfred Lein , E. K. U. Gross , Volker Engel

We present quantum mechanical calculations of the electron and ion momentum distributions following double ionization of a one-dimensional helium atom by ultrashort laser pulses...

2000 Physical Review Letters 301 citations

Measuring interactions between tunnel-coupled quantum dots

F. R. Waugh , M. J. Berry , Catherine H. Crouch +5 more

We report low-temperature tunneling measurements through double and triple quantum dots with adjustable interdot tunnel conductance, fabricated in a GaAs/${\mathrm{Al}}_{\mathit...

1996 Physical review. B, Condensed matter 133 citations

High intensity above-threshold ionization of He

U. Mohideen , M. H. Sher , H. W. K. Tom +5 more

This is the first high resolution measurement of the electron energy spectrum from high intensity above-threshold ionization (pondermotive energy \ensuremath{\gg} ionization pot...

1993 Physical Review Letters 139 citations

Charge oscillation in multiphoton and tunneling ionization of rare-gas dimers

Min Li , Hong Liu , Cong Wu +4 more

We perform a comparison study on strong-field ionization of the rare-gas dimers (Kr${}_{2}$ and Ar${}_{2}$) with their rare-gas monomers (Kr and Ar) in infrared laser fields at ...

2014 Physical Review A 6 citations

Publication Info

Year: 1992
Type: article
Volume: 69
Issue: 18
Pages: 2642-2645
Citations: 654
Access: Closed

External Links

Download PDF (Free) View on DOI.org PubMed Semantic Scholar

Social Impact

Altmetric

Observation of nonsequential double ionization of helium with optical tunneling

PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

654

OpenAlex

Influential

612

CrossRef

Cite This

APA Style

                            
                                
                                    D. N. Fittinghoff, 
                                
                                    Paul R. Bolton, 
                                
                                    Baisong Chang
                                
                                et al.
                            
                            (1992). 
                            Observation of nonsequential double ionization of helium with optical tunneling. 
                            Physical Review Letters
                            , 69
                            (18)
                            , 2642-2645.
                            https://doi.org/10.1103/physrevlett.69.2642
                        

Identifiers

DOI: 10.1103/physrevlett.69.2642
PMID: 10046547

Data Quality

Data completeness: 77%