Download or read book INTERACTION LASER GAZ EN CHAMP INTENSE written by PASCAL.. MONOT and published by . This book was released on 1993 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL DECRIT DIFFERENTS ASPECTS DE L'INTERACTION LASER-GAZ EN CHAMP LASER INTENSE (10#1#8 W/CM#2). IL A POUR BUT DE DEFINIR DES CONDITIONS PROPICES A L'OBSERVATION D'EFFETS RELATIVISTES DANS L'INTERACTION LASER-ELECTRON. CES EFFETS NE PEUVENT ETRE OBSERVES QU'A LA CONDITION DE DISPOSER SIMULTANEMENT D'UNE FORTE DENSITE ELECTRONIQUE ET D'UN ECLAIREMENT LASER INTENSE. UNE DENSITE ELECTRONIQUE IMPORTANTE (10#1#9 CM##3) PEUT ETRE OBTENUE PAR IONISATION D'UN GAZ SOUS L'ACTION D'UN CHAMP LASER. POUR LES FAIBLES DUREES D'IMPULSION UTILISEES ICI, NOS EXPERIENCES MONTRENT QUE L'IONISATION EST ASSUREE PAR EFFET TUNNEL. L'ENERGIE ELECTRONIQUE EST ALORS PRINCIPALEMENT GOUVERNEE PAR LA FORCE PONDEROMOTRICE QUI ASSURE LA CONVERSION ENTRE ENERGIE D'OSCILLATION ET ENERGIE DE TRANSLATION. UNE ENERGIE DE PLUSIEURS KEV PEUT AINSI ETRE COMMUNIQUEE AUX ELECTRONS QUI TENDENT A QUITTER LE CENTRE DU FAISCEAU LASER OU L'ECLAIREMENT EST LE PLUS ELEVE. LE RAPPEL IONIQUE PERMET DE CONFINER LES ELECTRONS SI LA PRESSION DE GAZ EST PROCHE D'UNE ATMOSPHERE. CEPENDANT LA PRESENCE D'UN FORT GRADIENT DE DENSITE ELECTRONIQUE EST A L'ORIGINE D'UNE VIOLENTE DEFOCALISATION DU FAISCEAU LASER POUR DE TELLES PRESSIONS. L'UTILISATION D'UN JET D'HYDROGENE PERMET DE LIMITER CET EFFET. UN ECLAIREMENT SEMBLABLE A CELUI ATTEINT DANS LE VIDE A PU ETRE AINSI OBTENU (>10#1#7 W/CM#2), AINSI QU'UNE FORTE DENSITE ELECTRONIQUE (10#1#9 CM##3). LA GENERATION DES HARMONIQUES DEUX ET QUATRE PAR LES ELECTRONS LIBRES DU PLASMA A PU DANS CES CONDITIONS ETRE OBSERVEE ET DE NOMBREUX EFFETS RELATIVISTES DEVRAIENT POUVOIR ENFIN ETRE MIS EN EVIDENCE

Download or read book Ultra Intense Laser Interaction Sciences written by S. Jacquemot and published by . This book was released on 2009 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Charged and Neutral Particles Channeling Phenomena II written by Sultan B. Dabagov and published by . This book was released on 2007 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Download or read book Lasers and Masers written by and published by . This book was released on 1965 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ultra Intense Laser Pulses Propagation and Interaction with Plasma written by and published by . This book was released on 1994 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Lasers and Masers a Continuing Bibliography written by United States. National Aeronautics and Space Administration and published by . This book was released on 1965 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Collective Super intense Laser plasma Interaction written by Hartmut Ruhl and published by . This book was released on 2000 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interaction of Intense Laser Pulses with Overdense Plasmas written by Sergey Rykovanov and published by . This book was released on 2009 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intense Laser Interactions with Trapped Ions written by John Desmond Alexander and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intense Ultrashort Laser Pulse Generation for Non linear Laser matter Interactions written by Christoph Peter Hauri and published by . This book was released on 2005 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intense Laser plasma Interactions with Gaseous Targets for Energy Transfer and Particle Acceleration written by Thomas Gangolf and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intense Femtosecond Laser Interactions with Molecules written by Raymond Barry King and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Interaction of Ultraintense Laser Pulses with Solid Targets and Preformed Plasmas written by M. Borghesi and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of Ultrafast Dynamics in the Interaction of Intense Laser Pulses with Gases Atomic Clusters and Plasmas written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Non linear Aspects of Ultra intense Laser plasma Interactions written by Fang Fang and published by . This book was released on 2008 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interaction d agr gats de gaz rares avec un champ laser intense written by SANDRINE.. DOBOSZ and published by . This book was released on 1998 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES AGREGATS DE GAZ RARES SONT UNE CIBLE ENCORE PEU ETUDIEE EN CHAMP LASER INTENSE. OR, LEURS PROPRIETES PARTICULIERES EN FONT UNE CIBLE TRES INTERESSANTE. ALORS QU'IL S'AGIT D'UNE CIBLE EN PHASE GAZEUSE, LA DENSITE LOCALE AU SEIN DES AGREGATS EST TRES ELEVEE, PROCHE DE CELLE D'UN SOLIDE. L'IRRADIATION INTENSE DES AGREGATS PRODUIT UN PLASMA AU SEIN DUQUEL DES PHENOMENES D'ECHAUFFEMENT COLLISIONNEL SE DEVELOPPENT. CECI EXPLIQUE, NOTAMMENT, LES ETATS D'IONISATION ELEVES DES FRAGMENTS ET LA GENERATION DE RAYONNEMENT X DANS LA GAMME D'ENERGIE DU KEV. L'ENSEMBLE DES RESULTATS EXPERIMENTAUX MONTRE QUE LES ATOMES DANS LES AGREGATS SONT D'ABORD IONISES PAR EFFET TUNNEL SUIVIS PAR UNE IONISATION PAR IMPACT ELECTRONIQUE. PAR EXEMPLE, POUR DES AGREGATS DE XENON, NOUS AVONS DETECTE DES IONS XE#Q#+ JUSQUE 30 FOIS CHARGES. LES ELECTRONS LES PLUS ENERGETIQUES QUITTENT L'AGREGAT, CREANT AINSI UN DEFAUT DE CHARGE EN SURFACE. LE PLASMA SE DETEND ALORS SOUS L'ACTION CONJUGUEE DE LA PRESSION COULOMBIENNE ET DE LA PRESSION CINETIQUE. L'IMPORTANCE DE L'UNE PAR RAPPORT A L'AUTRE DEPEND DE LA TAILLE DE L'AGREGAT, LES PLUS PETITS SE DILATANT PRINCIPALEMENT SOUS L'ACTION DES FORCES ELECTROSTATIQUES. CE SCENARIO PERMET D'EXPLIQUER LA PRESENCE DE FRAGMENTS AVEC DES ENERGIES ALLANT JUSQU'AU MEV. NOUS AVONS EGALEMENT REALISE UNE ETUDE DE SPECTROSCOPIE X A HAUTE RESOLUTION AFIN D'EXPLORER IN SITU LES PROPRIETES DU PLASMA. CETTE ETUDE SOULIGNE LE ROLE ESSENTIEL DES COLLISIONS ENTRE LES ELECTRONS ET LES IONS, A L'ORIGINE DE LA GENERATION DE RAYONNEMENT X DANS LA GAMME D'ENERGIE DU KEV. NOS OBSERVATIONS ONT ETE ETAYES PAR UN MODELE D'EXPANSION DU PLASMA GENERE A PARTIR D'UN AGREGAT.