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Ultrafast graphene-based broadband THz detector

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Mittendorf, Martin ; Winnerl, Stephan ; Kamann, Josef ; Eroms, Jonathan ; Weiss, Dieter ; Schneider, Harald ; Held, Manfred
License: Allianz- bzw. Nationallizenz
PDF - Published Version
Date of publication of this fulltext: 12 Jul 2013 12:05


We present an ultrafast graphene-based detector, working in the THz range at room temperature. A logarithmic-periodic antenna is coupled to a graphene flake that is produced by exfoliation on SiO2. The detector was characterized with the free-electron laser FELBE for wavelengths from 8 μm to 220 μm. The detector rise time is 50 ps in the wavelength range from 30 μm to 220 μm. Autocorrelation ...


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