Orientation Dependent Dissociative Ionization of H${}_2$ in Strong Elliptic Laser Fields: Modification of the release time through molecular orientation

Abstract

We investigate the photoelectron angular emission distributions obtained by strong field dissociative ionization of H${}_2$ using cold target recoil ion momentum spectroscopy. In case of employing laser light with an ellipticity close to 0.9 and an intensity of 1.0 $\times$ 10${}^{14}$ W/cm${}^2$, we find that the most probable release-time of the electron does not generally coincide with the time when the laser field maximizes. The release-time is affected by the molecular orientation. In addition, we observe that the width of the release-time distribution depends on molecular orientation. We attribute this observation to the two-center-interference.

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Cited by in corpus (3)

• The attoclock and the tunnelling time debate
• Angular dependence of the Wigner time delay upon tunnel ionization of $H_2$
• Alignment dependence of photoelectron momentum distributions for diatomic molecules N${}_2$ in strong elliptical laser fields