MOLWAVE

Study of attosecond electronic wavepacket dynamics in molecules using High Harmonic Generation

 Coordinatore COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES 

 Organization address address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015

contact info
Titolo: Mr.
Nome: Jean-Christophe
Cognome: Coste
Email: send email
Telefono: 33169089097
Fax: 33169082199

 Nazionalità Coordinatore France [FR]
 Totale costo 193˙594 €
 EC contributo 193˙594 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2011-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-04-10   -   2014-04-09

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

 Organization address address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015

contact info
Titolo: Mr.
Nome: Jean-Christophe
Cognome: Coste
Email: send email
Telefono: 33169089097
Fax: 33169082199

FR (PARIS 15) coordinator 193˙594.80

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

probing    ewp    electronic    attosecond    resolution    molecules    ionization    nm    scheme    hhg       dynamics    few    continuum    wave    give    packet    harmonic    self    time    xuv    tunnel    photoionization    combining    precise    wavelength   

 Obiettivo del progetto (Objective)

'Advanced studies of atomic and molecular systems require very precise probes with a few Angström space resolution and a few attosecond time resolution. High Harmonic Generation (HHG) satisfies these two requirements in a single tool: during this process, an intermediate step is the formation of an electronic wave packet in the continuum, whose central wavelength and duration perfectly match the spatial and temporal resolution required. HHG also provides a powerful source of ultrashort coherent XUV radiation for photoionization studies. The aim of this project is to investigate electronic wave packet (EWP) dynamics in molecules by combining different methods using the HHG process. It will be split in 3 tasks: (1) Investigation, using the self-probing scheme, of the EWP dynamics resulting from tunnel ionization in small Hydrocarbons, for instance ethylene (C2H4) or ethane (C2H6); this will be done in particular through a full mapping of the harmonic phase obtained by combining RABITT and harmonic interferometry experiments. This will allow precise determination of the shape and location of the hole created during tunnel ionization. (2) Measurement of the amplitude and phase of the photoionization dipole matrix elements of the same molecules by ionization with an attosecond pulse train within a weak IR field; moreover, the influence of resonant states on the ionization process will be investigated by scanning the XUV-wavelength across a resonance. This should give access to the attosecond time delay of the photoelectron emission in the two-color ionization process. (3) Implementation of a multicolour setup by mixing 400 nm, 800 nm and 1600 nm pulses to achieve a better control of the continuum electron wave packet in the HHG process. This will extend considerably the range of applicability of the self-probing scheme. All this will lead finally to a better understanding of the underlying processes and give multiple insights into the attosecond dynamics in molecules.'

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