Studies on multiplication effect of noises of PPDs, and a proposal of a new structure to improve the performance

TL;DR

This paper investigates the noise effects in Pixelated Photon Detectors (PPDs), quantifies their impact on performance, and proposes a new PPD structure to enhance gain while reducing noise.

Contribution

It provides a detailed analysis of noise multiplication effects in PPDs and introduces a novel structure to improve their performance.

Findings

Quantified the impact of various noise sources on PPD performance

Demonstrated the proposed structure can achieve high gain with low noise

Provided a new design approach for noise reduction in PPDs

Abstract

Pixelated Photon Detectors (PPDs) are the most promising semiconductor photodetectors in recent years. One of the issues with the PPD is its high noise rate. As well as random noise, PPD also exhibits so called after-pulsing and optical crosstalk, and these limit the applicable range of its gain as well as its size. By accurately measuring each of these causes of noises independently, we quantitatively evaluated how the performance of the present device is limited by multiplication effect of these noises. With this result and the pulsing mechanism of PPD, we propose a new structure of PPD which could have high gain with low noise.