  Ghost imaging allows to image an object without directly seeing this object.
Origi- nally demonstrated in the spatial domain using classical or
entangled-photon sources, it was recently shown that ghost imaging can be
transposed into the time domain to detect ultrafast signals with high temporal
resolution. Here, using an incoherent supercontinuum light source whose
spectral fluctuations are imaged using spectrum- to-time transformation in a
dispersive fiber, we experimentally demonstrate magnified ghost imaging in the
time domain. Our approach is scalable and allows to overcome the resolution
limitation of time-domain ghost imaging.
