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Detection of Weak Terahertz Pulsed Signals Using Kinetic Inductance Detectors

Authors
  • Soylu, Gizem1
  • Sanjuan, Federico1
  • Hérault, Emilie1
  • Roux, Jean-François1
  • Levy-Bertrand, Florence2
  • Calvo, Martino2
  • Monfardini, Alessandro2
  • Coutaz, Jean-Louis1
  • 1 University Savoie Mont-Blanc, IMEP-LAHC, UMR CNRS 5130, Le Bourget du Lac Cedex, 73376, France , Le Bourget du Lac Cedex (France)
  • 2 Institut Néel, CNRS/UGA UPR 2940, 25 rue des Martyrs, BP 166, Grenoble Cedex 9, 38042, France , Grenoble Cedex 9 (France)
Type
Published Article
Journal
Journal of Infrared, Millimeter, and Terahertz Waves
Publisher
Springer US
Publication Date
Nov 24, 2018
Volume
40
Issue
1
Pages
31–37
Identifiers
DOI: 10.1007/s10762-018-0555-6
Source
Springer Nature
Keywords
License
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Abstract

We report on the detection of weak terahertz pulsed signals, generated by either a commercial photoconductive antenna or an electro-optic crystal pumped by femtosecond laser pulses, using high-sensitive kinetic inductance detectors. Average powers as low as 0.1 fW have been recorded. We observe an unexpected constant signal when the bias voltage of the photoconductive antenna is strongly reduced.

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