Interaction of counter-propagating relativistic laser pair with subwavelength thin solid-density foil - X. R. Jiang; D. B. Zou; M. Y. Yu; K. Y. Feng; X. H. Yang; H. W. Chen; L. X. Hu; W. Q. Wang; G.B. Zhang; F. Q. Shao; W. H. Tang; T. P. Yu (High Power Laser Science and Engineering)