Imaging of X-ray Pairs in a Spontaneous Parametric Down-Conversion Process
Abstract
Spontaneous parametric down-conversion is a vital method for generating correlated photon pairs in the visible and near-infrared spectral regions; however, its extension to X-ray frequencies has faced substantial barriers. Here, we present an advancement in correlated X-ray pair generation and detection by employing a two-dimensional pixelated detector to obtain the first direct image of the pair distribution. Our study explores and directly visualizes the down-conversion process, revealing the characteristic ring structure of coincident photon pairs and demonstrating robust spatial correlations. A significant finding is the observation of energy anti-correlation, achieved at an unprecedented rate of approximately 4,100 pairs/hour, far exceeding previous reports in the literature. We believe these results represent a significant leap in X-ray quantum imaging, unlocking the potential for enhanced imaging of biological materials with reduced doses and broadening the applicability of X-ray quantum optical technologies.
Cite
@article{arxiv.2310.13078,
title = {Imaging of X-ray Pairs in a Spontaneous Parametric Down-Conversion Process},
author = {Justin C. Goodrich and Ryan Mahon and Joseph Hanrahan and Monika Dziubelski and Raphael A. Abrahao and Sanjit Karmakar and Kazimierz J. Gofron and Thomas Caswell and Daniel Allan and Lonny Berman and Andrei Fluerasu and Andrei Nomerotski and Cinzia DaVià and Sean McSweeney},
journal= {arXiv preprint arXiv:2310.13078},
year = {2023}
}
Comments
23 pages, 6 main figures, 4 supplemental figures