Tracking the photodissociation probability of D$_2^+$ induced by linearly chirped laser pulses

TL;DR

This paper theoretically investigates how linearly chirped laser pulses influence the photodissociation probability of D$_2^+$ ions, emphasizing the role of light-induced conical intersections and pulse parameters.

Contribution

It extends previous work by providing a detailed analysis of dissociation probabilities considering pulse duration, delay, and chirp sign within the LICI framework.

Findings

Chirped laser pulses significantly affect D$_2^+$ dissociation probabilities.

The position of the light-induced conical intersection shifts with laser chirp.

Different chirp signs produce distinct dissociation dynamics.

Abstract

In the presence of linearly varying frequency chirped laser pulses the photodissociation dynamics of D$_2^+$ is studied theoretically after ionization of D$_{2}$ . As a completion of our recent work (J. Chem. Phys. 143, 014305 (2015)) a comprehensive dependence on the pulse duration and delay time is presented in terms of total dissociation probabilities. Our numerical analysis carried out in the recently introduced light-induced conical intersection (LICI) framework clearly shows the effects of the changing position of the LICI which is induced by the frequency modulation of the chirped laser pulses. This impact is presented for positively, negatively and zero chirped short pulses.