COSMODET

Coherent control and molecular dynamics in the era of terahertz

 Coordinatore TEL AVIV UNIVERSITY 

 Organization address address: RAMAT AVIV
city: TEL AVIV
postcode: 69978

contact info
Titolo: Ms.
Nome: Lea
Cognome: Pais
Email: send email
Telefono: 97236408774
Fax: 97236409697

 Nazionalità Coordinatore Israel [IL]
 Totale costo 100˙000 €
 EC contributo 100˙000 €
 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-2013-CIG
 Funding Scheme MC-CIG
 Anno di inizio 2014
 Periodo (anno-mese-giorno) 2014-03-01   -   2018-02-28

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    TEL AVIV UNIVERSITY

 Organization address address: RAMAT AVIV
city: TEL AVIV
postcode: 69978

contact info
Titolo: Ms.
Nome: Lea
Cognome: Pais
Email: send email
Telefono: 97236408774
Fax: 97236409697

IL (TEL AVIV) coordinator 100˙000.00

Mappa


 Word cloud

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

induce    molecules    selective    interaction    rotational    optical    samples    dipole    generation    orientation    frequencies    thz    studying    distributions    photo    gas    dynamics    harmonic    techniques    angular    molecular   

 Obiettivo del progetto (Objective)

'Intense electromagnetic fields in the Terahertz (THz, 10^-12 Hz) frequency range have recently become tabletop available. In this proposal I offer to advance this unique range of frequencies into the world of gas phase coherent control and molecular dynamics. THz fields interact with molecules via their permanent electric dipoles, and induce molecular orientation, thus providing a new molecular handle (in addition to the commonly used visible/near-IR optical frequencies), for inducing and studying the rotational and molecular dynamics in the gas phase. I will utilize both THz and optical fields as two distinct molecular handles to induce unique molecular rotational responses that are inaccessible otherwise, and are invaluable for various spectroscopic techniques in the realm of molecular dynamics (such as high harmonic generation, molecular frame Photo-electron and Photo-ion angular distributions and ultrafast X-ray diffraction). THz induced inversion-asymmetry (orientation) enables nonlinear optical interrogation techniques that are forbidden in isotropic gas samples (such as second harmonic generation). Combining the polarizability-selective and dipole-selective interactions of optical and THz fields respectively, will enable far improved control of 3D molecular angular distributions – a long standing goal in chemistry and physics. The efficient THz-dipole interaction require field intensities that are orders of magnitude lower than those required by optical fields, and will be implemented for studying fragile samples such as bio-molecules. The dipole-selectivity of the THz field will be used for probing dynamic processes involving changes in the molecular dipole (such as trans<-->cis isomerization in azobenzene). The broadband resonant interaction of THz with the multilevel rotational system reveals collective light-matter phenomena that are fundamental to spectroscopy and will be further studied.'

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