Magnified Time-Domain Ghost Imaging

TL;DR

This paper demonstrates a scalable method for magnified time-domain ghost imaging using supercontinuum light and spectrum-to-time transformation, overcoming previous resolution limitations in ultrafast signal detection.

Contribution

It introduces a novel approach to magnify time-domain ghost imaging, enhancing resolution and scalability in ultrafast signal detection.

Findings

Successfully demonstrated magnified ghost imaging in the time domain

Achieved higher resolution in ultrafast signal detection

Utilized spectrum-to-time transformation with supercontinuum light

Abstract

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.