Advanced targets based on Au nanoparticles embedded in polymers films show high absorption coeffi- cient in the UV–visible and infrared region. They can be employed to enhance the proton and ion accel- eration from the laser-generated plasma in TNSA regime. In conditions of ‘‘p’’ polarized laser irradiations at 1015 W/cm2 intensity, in these films can be induced resonant absorption due to plasma wave excita- tion. Plasma on-line diagnostics is based on SiC detectors, Thomson spectrometry and X-ray streak cam- era imaging. Measurements of kinetic energy of accelerated ions indicate a significant increment using polymer targets containing gold nanoparticles and ‘‘p’’ polarized laser light with respect to pure polymers and unpolarized light irradiation.
Laser irradiations of advanced targets promoting absorption resonance for ion acceleration in TNSA regime
GIULIETTI, DANILO;
2015-01-01
Abstract
Advanced targets based on Au nanoparticles embedded in polymers films show high absorption coeffi- cient in the UV–visible and infrared region. They can be employed to enhance the proton and ion accel- eration from the laser-generated plasma in TNSA regime. In conditions of ‘‘p’’ polarized laser irradiations at 1015 W/cm2 intensity, in these films can be induced resonant absorption due to plasma wave excita- tion. Plasma on-line diagnostics is based on SiC detectors, Thomson spectrometry and X-ray streak cam- era imaging. Measurements of kinetic energy of accelerated ions indicate a significant increment using polymer targets containing gold nanoparticles and ‘‘p’’ polarized laser light with respect to pure polymers and unpolarized light irradiation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
