A Quantum Ghost Imaging Spectrometer

TL;DR

This paper introduces a quantum ghost imaging spectrometer that leverages spatial and spectral correlations to remotely reconstruct the frequency profile of a system, demonstrating robustness even in low count regimes.

Contribution

The work presents a novel quantum spectrometer design that combines ghost imaging with spectral correlation analysis, enabling remote spectral profiling.

Findings

Successfully reconstructs frequency profiles remotely

Operates effectively in low count regimes

Validates spectral regions with model-independent analysis

Abstract

We present a device that exploits spatial and spectral correlations in parametric downconversion at once. By using a ghost imaging arrangement, we have been able to reconstruct remotely the frequency profile of a composite system. The presence of distinct spectral regions is corroborated by a model-independent statistical analysis that constitutes an intriguing possibility also in the low count regime.