Analiza integriranih lavinskih fotodioda za detekciju jednog fotona

master's thesis

• Title (english): Analysis of integrated single photon avalanche photodiodes
• Author: Iva Kalšan
• Mentor: Tomislav Suligoj (mentor)
• Committee member: Tomislav Suligoj (predsjednik povjerenstva)
• Committee member: Marko Koričić (član povjerenstva)
• Committee member: Mirko Poljak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-09-20, Croatia

Abstract

Lavinske fotodiode za detekciju jednog fotona (engl. Single Photon Avalanche Diode, SPAD) su pn-spojevi koji rade u Geigerovom režimu te električni signal izaziva jedan foton. Parametri SPAD-a su frekvencija tamnih impulsa, naknadno pulsiranje, efikasnost detekcije fotona, mrtvo vrijeme te vremenska rezolucija. Fokus rada bio je na mjerenju tamnih impulsa, izračunu parametara koji ovise o tamnim impulsima (frekvencija tamnih impulsa i naknadno pulsiranje) te objasniti kako različiti tehnološki parametri i geometrije struktura utječu na te parametre. Mjerile su se karakteristike sedam različitih SPAD-ova koji se razlikuju po karakteristikama katoda. Mjerenja su se odvijala sa wafer-om u dark box-u uz pomoć SMU te oscilatora.

Abstract (english)

Single photon avalanche diodes (SPADs) are pn-junctions working in Geiger mode and one photon produces elelctrical signal. Parameters of SPADs are dark count rate, afterpulsing, photon detection efficiency, dead time and timing resolutin (jitter). The main focus of this theses were measuring dark counts, calculating parameters which depend on dark counts (dark count rate and afterpulsing) and to explain how different technological parameters and geometry structures influence these parameters. The characteristics of seven different SPADs were measured which differed by the cjharacteristics of their cathodes. The measurements were performed with the wafer in a dark box with a source measure unit and an oscilloscope.

• Keywords: lavinska fotodioda za detekciju jednog fotona; tamni impulsi; frekvencija tamnih impulsa; naknadno pulsiranje
• Keywords (english): single photon avalanche diode; dark counts; dark count rate; afterpulsing
• Language: croatian
• URN:NBN: urn:nbn:hr:168:431530
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 21:01:05