TY - JOUR PB - American Physical Society ID - 10.1103/Physics.2.91 TI - Flipping a photonic shock wave JF - Physics JA - Physics J1 - PHYSICS VL - 2 IS - SP - 91 EP - PY - 2009/11/02/ UR - http://link.aps.org/doi/10.1103/Physics.2.91 A1 - Zhang, Shuang AU - Zhang, Xiang ER -