Harmonic Generation in Intense Laser Fields

Información del proyecto

HAGILF

Identificador del acuerdo de subvención: CHRX920028

Proyecto cerrado

Fecha de inicio 1 Julio 1993

Fecha de finalización 30 Junio 1995

Financiado con arreglo a

• Specific research and technological development programme (EEC) in the field of human capital and mobility, 1990-1994

Coste total Sin datos

Aportación de la UE Sin datos

Coordinado por

COMMISSARIAT A L'ENERGIE ATOMIQUE
France

Objetivo

The aim of the network is to develop harmonic generation processes so that they become a useful XUV source with well characterized and understood properties.

There are three objectives :
1. to understand the basic physics governing harmonic generation in strong fields
2. to characterize the emitted radiation
3. to demonstrate the usefulness of this radiation for applications.
The physical origin of the cutoff in harmonic generation in intense laser fields has been clarified. The classical interpretation of the generation of high harmonics has been further explored, with results on the ellipticity dependence of harmonics as well as a new and simple theoretical approach. The generation of harmonics from atoms and ions and the influence of pulse shapes have been studied. Harmonic generation efficiencies between neutral and atomic systems have been compared. Control of the third harmonic conversion through laser induced continuum structure has been studied. Above threshold ionization with high repetition rates has been investigated and some harmonic generation experiments on solid targets have been performed. Angular distributions of harmonics have been studied. The results show a narrowing of the angular distributions in the cutoff region. Temporal profiles of low order harmonics have been measured showing in particular the influence of electron dispersion. Spectral profiles have been measured. A first application of harmonics in atomic spectroscopy has been demonstrated. Using the successive harmonics of a chromium doped lithium strontium aluminium fluoride (LiSAF) laser, the relative photoionization cross sections of the rare gases have been measured over the range 10 to 120 ev.

Ámbito científico

• natural sciences › chemical sciences › inorganic chemistry › alkali metals
• natural sciences › chemical sciences › inorganic chemistry › transition metals
• natural sciences › chemical sciences › inorganic chemistry › alkaline earth metals
• natural sciences › chemical sciences › inorganic chemistry › post-transition metals
• natural sciences › physical sciences › optics › laser physics

Programa(s)

• FP3-HCM - Specific research and technological development programme (EEC) in the field of human capital and mobility, 1990-1994

Tema(s)

Data not available

Convocatoria de propuestas

Data not available

Régimen de financiación

CSC - Cost-sharing contracts

Coordinador

COMMISSARIAT A L'ENERGIE ATOMIQUE

• Aportación de la UE: Sin datos
• Dirección: Ctr Etudes de Saclay -CE-S ; 91191 GIF SUR YVETTE ; Francia
• Coste total: Sin datos

Participantes (5)

FOUNDATION OF RESEARCH AND TECHNOLOGY - HELLAS

Grecia

• Aportación de la UE: Sin datos
• Dirección: Vasilika Vouton ; 71110 IRAKLION
• Coste total: Sin datos

Imperial College of Science, Technology and Medicine

Reino Unido

• Aportación de la UE: Sin datos
• Dirección: Blackett Laboratory Prince Consort Road ; SW7 2BZ London
• Coste total: Sin datos

Lund University

Suecia

• Aportación de la UE: Sin datos
• Dirección: 221 00 Lund
• Coste total: Sin datos

MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.

Alemania

• Aportación de la UE: Sin datos
• Dirección: 1,Hans-Kopfermann-strasse 1 ; 85748 GARCHING
• Coste total: Sin datos

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD

Reino Unido

• Aportación de la UE: Sin datos
• Dirección: Keble Road 1- Denys Wilkinson Building ; OX1 3RH OXFORD
• Coste total: Sin datos