EMCOS

Emission Comb Spectroscopy: Development of novel frequency comb spectroscopy methods based on stimulated Raman scattering

Coordinatore	STICHTING VU-VUMC    more  Organization address address: DE BOELELAAN 1105 city: AMSTERDAM postcode: 1081 HV contact info Titolo: Ms. Nome: Yvonne Cognome: Kops Email: send email Telefono: +31 20 598 7504
Nazionalità Coordinatore	Netherlands [NL]
Totale costo	166˙535 €
EC contributo	166˙535 €
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-2009-IIF
Funding Scheme	MC-IIF
Anno di inizio	2010
Periodo (anno-mese-giorno)	2010-09-01   -   2012-08-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	STICHTING VU-VUMC  Organization address address: DE BOELELAAN 1105 city: AMSTERDAM postcode: 1081 HV contact info Titolo: Ms. Nome: Yvonne Cognome: Kops Email: send email Telefono: +31 20 598 7504	NL (AMSTERDAM)	coordinator	166˙535.20
2	VERENIGING VOOR CHRISTELIJK HOGER ONDERWIJS WETENSCHAPPELIJK ONDERZOEK EN PATIENTENZORG  Organization address address: De Boelelaan 1105 city: AMSTERDAM postcode: 1081 HV contact info Titolo: Ms. Nome: Dirkje Cognome: Schinkelshoek Email: send email Telefono: +31 20 598 7500 Fax: +31 20 598 7448	NL (AMSTERDAM)	participant	0.00

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 Obiettivo del progetto (Objective)

'Coherent control of ultrafast lasers results in well-defined frequency combs revolutionizing many aspects in fundamental and applied science. Most recently, frequency comb technology was used to push the performance of Fourier transform spectroscopy to unprecedented levels. Multi-heterodyne spectroscopy is a rapidly growing research field opening new perspectives in terms of sensitivity, spectral resolution and data acquisition time which has been demonstrated in various experiments on absorption spectroscopy. Here, we propose a novel technique for frequency comb based precision spectroscopy based on stimulated Raman scattering. This approach or emission frequency comb spectroscopy in general has not been addressed so far. We describe two schemes for measuring the Raman response of molecular samples and the corresponding proof-of-principle experiments. Based on the pump probe technique, the consequences of the excitation of rotational transitions in molecular hydrogen will be measured by multi-heterodyning with phase-locked frequency combs. The first technique relies on Raman induced Stokes gain and anti-Stokes loss, respectively, experienced by the probe pulse whereas the second is based on the time dependent measurement of the transient index perturbation. As multi-heterodyne spectroscopy is capable to yield the full complex spectrum, both schemes can be studied with a similar setup. Another goal of this proposal is the design of a tailored fibre based dual frequency comb system to be able to fully exploit the potential of this spectroscopic technique. The advances of our scheme will then be utilized for spatially resolved spectroscopy and microscopy which is particularly useful for biological samples. Broadband measurement allows simultaneous analysis of various transitions. The proposed project constitutes a new direction for nonlinear precision spectroscopy with a huge potential for many branches of science and interdisciplinary research.'