field ionization
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2021 ◽  
Vol 127 (27) ◽  
Author(s):  
D. Trabert ◽  
N. Anders ◽  
S. Brennecke ◽  
M. S. Schöffler ◽  
T. Jahnke ◽  
...  

2021 ◽  
Vol 38 (12) ◽  
pp. 123301
Author(s):  
Xiaoli Guo ◽  
Cheng Jin ◽  
Ziqiang He ◽  
Song-Feng Zhao ◽  
Xiao-Xin Zhou ◽  
...  

We propose a method to retrieve the angle-dependent strong-field ionization of highest occupied molecular orbital (HOMO) from high-order harmonic generation (HHG) of aligned molecules. This method is based on the single-molecule quantitative rescattering model with known alignment distribution and photo-recombination cross sections of fixed-in-space molecules. With the macroscopic HHG of aligned N2 molecules, we show that angle-dependent ionization of HOMO can be successfully retrieved at both low and high degrees of alignment. We then show that the error in the retrieved angular dependence of ionization becomes larger if the uncertainty in the alignment distribution is introduced in the retrieval procedure. We also examine that the retrieved ionization of HOMO is much deviated from the accurate one if the intensity of probe laser becomes higher such that inner HOMO-1 can contribute to HHG.


Author(s):  
O.V. Glushkov ◽  
O.Yu. Khetselius ◽  
A.A. Kuznetsova ◽  
A.A. Svinarenko ◽  
V.B. Ternovsky

An effective approach to determining the parameters of the optimal schemes of the method of laser selective photoionization of atoms (elements and isotopes) with finite ionization due to collisions, ionization by a pulsed electric field, ionization through high (Rydberg) states and narrow autoionization resonances for the separation of heavy isotopes has been proposed. in gas separator devices. On the basis of the theory of optimal control and previously developed quantum models for calculating the characteristics of elementary atomic processes, optimization models of isotope separation are numerically implemented in the scheme of selective laser photoionization with ionization due to collisions in gas mixtures, ionization by a pulsed electric field, autoionization, etc. etc. The data obtained quantitatively confirm the promise of the method of laser photoionization with finite ionization due to collisions, ionization by a pulsed electric field, ionization through high-lying (Rydberg) states and narrow autoionization resonances and give a set of parameters for the desired optimal schemes, in particular, the laser pulse optimal shape for rubidium and uranium isotopes.


Author(s):  
Abbie Charlotte Bray ◽  
Andrew Stephen Maxwell ◽  
Yoel Kissin ◽  
Marco Ruberti ◽  
Marcelo F Ciappina ◽  
...  

Author(s):  
Shaked Rozen ◽  
Sylvain Larroque ◽  
Nirit Dudovich ◽  
Yann Mairesse ◽  
Bernard Pons

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Szabolcs Hack ◽  
Szilárd Majorosi ◽  
Mihály G. Benedict ◽  
Sándor Varró ◽  
Attila Czirják

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Daniel Bakucz Canário ◽  
Michael Klaiber ◽  
Karen Z. Hatsagortsyan ◽  
Christoph H. Keitel

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