Interaction-free imaging of multi-pixel objects

Abstract

Quantum imaging, one of the pillars of quantum technologies, is well-suited to study sensitive samples which require low-light conditions, like biological tissues. In this context, interaction-free measurements (IFM) allow us infer the presence of an opaque object without the photon interacting with the sample. Current IFM schemes are designed for single-pixel objects, while real-life samples are structured, multi-pixel objects. Here we extend the IFM imaging schemes to multi-pixel, semi-transparent objects, by encoding the information about the pixels into an internal degree of freedom, namely orbital angular momentum (OAM). This allows us to image the pixels in parallel. Our solution exhibits a better theoretical efficiency than the single-pixel case. Our scheme can be extended to other degrees of freedom, like the photon radial quantum number, in order to image 1D and 2D objects.

10 pages, 4 figures

References in corpus (10)

• Experimental realization of sub-shot-noise quantum imaging
• Realisation of the first sub shot noise wide field microscope
• Sorting photons by radial quantum number
• Near-Perfect Sorting of Orbital Angular Momentum and Angular Position States of Light
• Semitransparency in interaction-free measurements
• Quantum Imaging for Semiconductor Industry
• Biological Microscopy with Undetected Photons
• Interaction-free measurement with an imperfect absorber
• Reduced damage in electron microscopy by using interaction-free measurement and conditional re-illumination
• Computational Ghost Imaging