Acceleration of highly stripped ions by relativistic femtosecond laser pulse from nanoscale targets with contrast control

The experimental results on the relativistic laser-plasma interactions of femtosecond laser pulse with bulk targets and contrast control and with nanoscale structured targets are presented. In experiments highly charged ions up to Si
¹²⁺
and even fully stripped Si
¹⁴⁺
were registered. A significant increase of ion energy and ion flux compared to experiment with clear Si were demonstrated.