Self-Probing Spectroscopy of the SF6 Molecule: A Study of the Spectral Amplitude and Phase of the High Harmonic Emission | Zendy

Bastian Manschwetus | Zendy; Nan Lin | Zendy; Jan Rothhardt | Zendy; Roland Guichard | Zendy; T. Auguste | Zendy; A. Camper | Zendy; P. Breger | Zendy; Jérémie Caillat | Zendy; M. Géléoc | Zendy; Thierry Ruchon | Zendy; Richard Taïeb | Zendy; B. Carré | Zendy; P. Salières | Zendy

Open Access

Self-Probing Spectroscopy of the SF₆ Molecule: A Study of the Spectral Amplitude and Phase of the High Harmonic Emission

Author(s) -

Bastian Manschwetus,

Nan Lin,

Jan Rothhardt,

Roland Guichard,

T. Auguste,

A. Camper,

P. Breger,

Jérémie Caillat,

M. Géléoc,

Thierry Ruchon,

Richard Taïeb,

B. Carré,

P. Salières

Publication year - 2015

Publication title -

the journal of physical chemistry a

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.756

H-Index - 235

eISSN - 1520-5215

pISSN - 1089-5639

DOI - 10.1021/acs.jpca.5b00446

Subject(s) - spectroscopy , amplitude , phase (matter) , molecule , harmonic , atomic physics , materials science , physics , molecular physics , optics , quantum mechanics

We present characterizations of the attosecond pulse train produced in the high harmonic generation (HHG) from SF6 molecules irradiated by a strong pulsed laser field at 800 nm. At harmonic order 17, we observe a minimum in the amplitude of the emitted spectrum and a corresponding distortion in the phase. Our experimental results are compared to two models: a multicenter interference model focused on the effect of the structure of the SF6 molecule in HHG and a model focused on the interferences between multiple ionization channels in HHG. We find that the experimental results agree very well with the multiple ionization channels model, illustrating that HHG in molecules can be very complex and that it provides insights of the intramolecular electron dynamics during the interaction process.

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