Accessing photon bunching with photon number resolving multi-pixel detector

TL;DR

This paper introduces a method to mitigate cross-talk effects in multi-pixel photon detectors, enhancing their ability to accurately measure photon bunching and intensity correlations in quantum optics.

Contribution

The paper proposes a novel filtering technique to reduce cross-talk in multi-pixel photon detectors, improving photon-number resolution capabilities.

Findings

Effective suppression of cross-talk in MPPC detectors.

Enhanced accuracy in photon bunching measurements.

Potential for improved quantum optics experiments.

Abstract

In quantum optics and its applications, there is an urgent demand for photon-number resolving detectors. Recently, there appeared multi-pixel detectors (MPPC) that are able to distinguish between 1,2,..10 photons. At the same time, strong coupling between different pixels (cross-talk) hinders their photon-number resolution. In this work, we suggest a method for `filtering out' the cross-talk effect in the measurement of intensity correlation functions.