Rayleigh-Taylor instability of an ultrathin foil accelerated by the radiation pressure of an intense laser. - Palmer, CAJ; Schreiber, J; Nagel, SR; Dover, NP; Bellei, C; Beg, FN; Bott, S; Clarke, RJ; Dangor, AE; Hassan, SM; Hilz, P; Jung, D; et al. (Phys Rev Lett, 2012)