Ultra-fast sampling of terahertz pulses from a quantum cascade laser using superconducting antenna-coupled NbN and YBCO detectors

Author

Dean, Paul ; Valavanis, Alex ; Scheuring, Alexander ; Stockhausen, Axel ; Probst, Petra ; Salih, Mohammed ; Khanna, Suraj P. ; Chowdhury, Siddhant ; Wuensch, Stefan ; Il´in, Konstantin ; Linfield, Edmund H. ; Davies, A. Giles ; Siegel, Michael

Author_Institution

Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

Abstract

We demonstrate the ultra-fast detection of terahertz pulses from a quantum cascade laser (QCL) using superconducting NbN and YBCO detectors. This has enabled both the intrapulse and interpulse dynamics of a THz QCL to be measured directly, including interpulse heating effects on sub-μs timescales.

Keywords

barium compounds; niobium compounds; quantum cascade lasers; superconducting devices; terahertz wave detectors; yttrium compounds; NbN; YBCO; interpulse dynamics; interpulse heating effects; intrapulse dynamics; quantum cascade laser; superconducting antenna-coupled detectors; terahertz pulses; ultra-fast detection; ultra-fast sampling; Current measurement; Detectors; Heating; Quantum cascade lasers; Temperature; Temperature measurement; Yttrium barium copper oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380341

Filename

6380341