CONICX

Conical Wave pulses for phase-matched frequency conversion into the eXtreme-UV region

Coordinatore	FUNDACIO INSTITUT DE CIENCIES FOTONIQUES    more  Organization address address: AVINGUDA CARL FRIEDRICH GAUSS 3 city: Castelldefels postcode: 8860 contact info Titolo: Ms. Nome: Dolors Cognome: Mateu Email: send email Telefono: -5534141 Fax: -5534059
Nazionalità Coordinatore	Spain [ES]
Totale costo	80˙433 €
EC contributo	80˙433 €
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-2007-2-1-IEF
Funding Scheme	MC-IEF
Anno di inizio	2008
Periodo (anno-mese-giorno)	2008-08-01   -   2009-07-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	FUNDACIO INSTITUT DE CIENCIES FOTONIQUES  Organization address address: AVINGUDA CARL FRIEDRICH GAUSS 3 city: Castelldefels postcode: 8860 contact info Titolo: Ms. Nome: Dolors Cognome: Mateu Email: send email Telefono: -5534141 Fax: -5534059	ES (Castelldefels)	coordinator	0.00

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 Obiettivo del progetto (Objective)

'One of the most promising applications envisaged in the near future for LASER physics in the ”extreme” nonlinear optical regime is efficient frequency conversion from the visible or near-infrared region into the extreme UV region (EUV). Table-top laser sources of EUV light give ready access to attosecond pulses and wavelengths in the 1-50 nm range, of great importance for example for applications in ultrafast spectroscopy, microscopy and high-density photo-lithography. However to date there is no broad-range phase matching mechanism that allows to achieve the maximum allowed (limited by absorption) conversion efficiency to EUV light. Hollow waveguides may be used at low intensities and gas pressures. Modulated waveguides have been used at higher intensities. Both these methods lack the possibility to arbitrarily choose the operating conditions (e.g. gas pressure or laser intensity) and they have an extremely limited tunability. We propose a novel phase-matching technique based on the use of conical pulses that allows to reach the absorption limit for any gas, pressure or EUV wavelength desired. Tunability is obtained by simple tuning of an imaging telescope. Conical pulses, for example the Bessel pulse or the X Wave, offer the possibility to tune the effective wave-vector of the laser pulse over an extremely broad range and thus phase-match any nonlinear interaction of interest - in this case, frequency conversion into the EUV region. Preliminar simulations using a propagation code for the laser pulse and based on an estimation of the coherence length, have already demonstrated the validity of the technique. Now we need to validate the idea experimentally and eventually with further simulations that also properly account for the full quantum nature of the EUV generation process. The goal therefore is to introduce a new technology that will lead to a significant advance in EUV physics and related applications.'