Assorbimento indotto da onde di superficie in laser-plasmi / Surface Wave Induced Laser Absorption in Plasmas


Funded by: Consiglio Nazionale delle Ricerche (CNR)  
Calls: Accordo Bilaterale CNR-CNRS – Programma Biennale 2010/2011
Start date: 2010-01-01  End date: 2012-02-01
Total Budget: EUR 8.000,00  INO share of the total budget: EUR 5.904,65
Scientific manager: Macchi Andrea   and for INO is: Macchi Andrea

Organization/Institution/Company main assignee: CNR – Istituto Nazionale di Ottica (INO)

other Organization/Institution/Company involved:

other INO’s people involved:

Abstract: In this project we investigated superintense laser pulse absorption and related electron and ion acceleration mediated by resonant surface wave excitation in grating targets.
Our work was mainly theoretical and was based both on analytical modeling and numerical simulations, both using an originally developed code for electromagnetic propagation on dielectric surfaces and self-consistent, electromagnetic particle-in-cell simulations of laser-plasma interactions performed on parallel supercomputers.
The work has been the basis for a devoted experimental campaign in an European facility, aiming to demostrate resonant surface wave absorption at the highest intensities reported so far using ultrahigh contrast pulses.

INO’s Experiments/Theoretical Study correlated:
Intense laser interaction with structured targets and high field plasmonics

The Scientific Results:
1) Efficient laser-overdense plasma coupling via surface plasma waves and steady magnetic field generation
2) High power laser-grating interaction
3) Effects of Grating Depth on Surface Wave Excitation and Electron