title: Universal ultrafast detector for short optical pulses based on graphene.
abstract: Graphene has unique optical and electronic properties that make it attractive as an active material for broadband ultrafast detection. We present here a graphene-based detector that shows 40-picosecond electrical rise time over a spectral range that spans nearly three orders of magnitude, from the visible to the far-infrared. The detector employs a large area graphene active region with interdigitated electrodes that are connected to a log-periodic antenna to improve the long-wavelength collection efficiency, and a silicon carbide substrate that is transparent throughout the visible regime. The detector exhibits a noise-equivalent power of approximately 100 µW·Hz(-½) and is characterized at wavelengths from 780 nm to 500 µm.
authors.forename: Martin
authors.initials: M
authors.lastname: Mittendorff
authors.forename: Josef
authors.initials: J
authors.lastname: Kamann
authors.forename: Jonathan
authors.initials: J
authors.lastname: Eroms
authors.forename: Dieter
authors.initials: D
authors.lastname: Weiss
authors.forename: Christoph
authors.initials: C
authors.lastname: Drexler
authors.forename: Sergey D
authors.initials: SD
authors.lastname: Ganichev
authors.forename: Jochen
authors.initials: J
authors.lastname: Kerbusch
authors.forename: Artur
authors.initials: A
authors.lastname: Erbe
authors.forename: Ryan J
authors.initials: RJ
authors.lastname: Suess
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Murphy
authors.forename: Sangam
authors.initials: S
authors.lastname: Chatterjee
authors.forename: Kolja
authors.initials: K
authors.lastname: Kolata
authors.forename: Joachim
authors.initials: J
authors.lastname: Ohser
authors.forename: Jacob C
authors.initials: JC
authors.lastname: König-Otto
authors.forename: Harald
authors.initials: H
authors.lastname: Schneider
authors.forename: Manfred
authors.initials: M
authors.lastname: Helm
authors.forename: Stephan
authors.initials: S
authors.lastname: Winnerl