Decoupling the dark count rate contributions in Ge-on-Si single photon avalanche diodes

Dumas, D. et al. (2024) Decoupling the dark count rate contributions in Ge-on-Si single photon avalanche diodes. In: SPIE OPTO 2024, San Francisco, California, USA, 27 Jan-01 Feb 2024, (doi: 10.1117/12.3001450)

Abstract

Single Photon Avalanche Diodes (SPADs) are semiconductor devices capable of accurately timing the arrival of single photons of light. Previously, we have demonstrated a pseudo-planar Ge-on-Si SPAD that operates in the short-wave infrared, which can be compatible with Si foundry processing. Here, we investigate the pseudo-planar design with simulation and experiment to establish the spatial contributions to the dark-count rate, which will ultimately facilitate optimisation towards operation at temperatures compatible with Peltier cooler technologies.

• Item Type: Conference Proceedings
• Additional Information: First published in Proceedings Volume 12895, Quantum Sensing and Nano Electronics and Photonics XX; 1289505 (2024). The authors acknowledge funding from: Royal Academy of Engineering (RF-201819-18-187); Innovate UK (44835); Engineering and Physical Sciences Research Council (UK EPSRC; EP/S026428/1, EP/T001011/1, EP/T00097X/1, EP/W028166/1); EC Horizon (grant number 101070700).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: McCarthy, Charlie and Mirza, Dr Muhammad M A and Mowbray, Miss Hannah and Coughlan, Mr Conor and Millar, Dr Ross and Paul, Professor Douglas and Smith, Charlie and Dumas, Dr Derek and Kirdoda, Mr Jaroslaw
• Authors: Dumas, D., Coughlan, C., Smith, C., Mirza, M., Kirdoda, J., Fleming, F., McCarthy, C., Mowbray, H., Yi, X., Saalbach, L., Buller, G. S., Paul, D., and Millar, R.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Proc. SPIE 12895
• Copyright Holders: Copyright: © 2024 SPIE
• First Published: First published in Proceedings of SPIE 12895: 1289505
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
305161		Germanium Tin Quantum Detectors	Ross Millar	Royal Academy of Engineering (RAE)	RF/201819/18/187	ENG - Electronics & Nanoscale Engineering
309639		Single Photon Infrared Imaging, Detection and Ranging	Douglas Paul	Innovate UK (INNOVATE)	44835	ENG - Electronics & Nanoscale Engineering
305567		QuantIC - The UK Quantum Technoogy Hub in Quantum Enhanced Imaging	Miles Padgett	Engineering and Physical Sciences Research Council (EPSRC)	EP/T00097X/1	P&S - Physics & Astronomy