Ghost imaging with intense fields from chaotically-seeded parametric   downconversion
  We present the first experimental demonstration of ghost imaging realized with intense beams generated by a parametric downconversion interaction seeded with pseudo-thermal light. As expected, the real image of the object is reconstructed satisfying the thin-lens equation. We show that the experimental visibility of the reconstructed image is in accordance with the theoretically expected one. 
E. Puddu, A. Andreoni, I. P. Degiovanni, M. Bondani, S. Castelletto