Systematic study of the PDC speckle structure for quantum imaging applications

TL;DR

This paper investigates how the speckle pattern of parametric down-converted light varies with pump beam parameters to improve sub shot noise quantum imaging of weak objects.

Contribution

It provides the first experimental data characterizing PDC speckle structure dependence on pump parameters for quantum imaging.

Findings

Speckle structure varies with pump beam parameters

Data supports optimization of quantum imaging techniques

Enhances understanding of PDC light properties

Abstract

Sub shot noise imaging of weak object by exploiting Parametric Down Converted light represents a very interesting technological development. A precise characterization of PDC speckle structure in dependence of pump beam parameters is a fundamental tool for this application. In this paper we present a first set of data addressed to this purpose.