A terahertz and infrared sensitive photomultiplier tube with a fieldmixing photocathode

Simon Lehnskov Lange, Narwan Kabir Noori, Naoya Kawai, Peter Uhd Jepsen

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Abstract

In this work, we present a photomultiplier tube (PMT) with a metasurface photocathode that is based on ultrafast field emission (FE) from incident terahertz (THz)- and infrared (IR) light. We mix the incident electric field with the electric field from an electronic source to decrease the PMT detection threshold. Due to the pronounced non-linearity of FE, this approach allows for extremely sensitive light detection - possibly down to few or even single photon level across the entire THz- and IR frequency range.
Original languageEnglish
Title of host publicationProceedings of 45th International Conference on Infrared, Millimeter, and Terahertz Waves
Number of pages1
PublisherIEEE
Publication date2020
Article number9370591
ISBN (Print)9781728166209
DOIs
Publication statusPublished - 2020
Event45th International Conference on Infrared, Millimeter, and Terahertz Waves - Virtual event, Buffalo, United States
Duration: 8 Nov 202013 Nov 2020
Conference number: 45

Conference

Conference45th International Conference on Infrared, Millimeter, and Terahertz Waves
Number45
LocationVirtual event
Country/TerritoryUnited States
CityBuffalo
Period08/11/202013/11/2020
Series International Conference on Infrared, Millimeter and Terahertz Waves
ISSN2162-2027

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