Enhancement of resonant absorption through excitation of SPR

0461728 - ÚJF 2017 RIV NL eng J - Journal Article
Giulietti, D. - Calcagno, L. - Curcio, A. - Cutroneo, Mariapompea - Galletti, M. - Skála, Jiří - Torrisi, L. - Zimbone, M.
Enhancement of resonant absorption through excitation of SPR.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 829, SEP (2016), s. 117-120. ISSN 0168-9002. E-ISSN 1872-9576.
[2nd Workshop on European Advanced Accelerator Concepts (EAAC). Isolda d'Elba, 13.09.2015-19.05.2015]
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : laser-solid target interaction * nanoparticle implantation * surface plasmons * electronic plasma waves
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders; BL - Plasma and Gas Discharge Physics (FZU-D)
Impact factor: 1.362, year: 2016

In this experiment the absorption of the laser radiation impinging on polymeric films with Au nano-particles implanted in surface was studied. By varying the polarization and the incidence angle of the laser radiation on target, the role in the laser absorption of both excitation of surface plasmons and excitation of electronic plasma waves at critical density through resonant absorption was highlighted. In conditions of p-polarized laser irradiations at 10(15) W/cm(2) intensity, resonant absorption can be induced in films enhancing proton and ion acceleration. Plasma on-line diagnostics is based on SiC detectors. Measurements of kinetic energy of accelerated ions indicate a significant increment using p-polarized laser light with respect to no-polarized light irradiation.
Permanent Link: http://hdl.handle.net/11104/0261314