Enhancing laser-driven proton acceleration by using micro-pillar arrays at high drive energy Dimitri Khaghani, Mathieu Lobet, Björn Borm, Loïc Burr, Felix Gärtner, Laurent Gremillet, Liana Movsesyan, Olga Rosmej [...] and spallation in graphite targets under nano- and picosecond laser irradiation Belikov, RS; Krasyuk, IK; Rienecker, T; Semenov, AY; Rosmej, ON; Tomut, M; Khishchenko, KV; Schoenlein, A QUANTUM ELECTRONICS [...] strength of graphite using nano- and picosecond laser pulses I K Krasyuk · A Yu Semenov · I A Stuchebryukhov · R S Belikov · K V Khishchenko · O N Rosmej · T Rienecker · A Schoenlein · M Tomut Journal of