Graphene investigated in the THz range: ultrafast dynamics and device perspectives


Graphene investigated in the THz range: ultrafast dynamics and device perspectives

Winnerl, S.; Mittendorff, M.; Schneider, H.; Helm, M.; Winzer, T.; Wendler, F.; Malic, E.; Knorr, A.

The carrier relaxation dynamics in graphene in energetic proximity to the Dirac point is studied. In particular we discuss the role of optical phonon scattering and the interplay of interband and intraband excitations. The potential to make use of the ultrafast dynamics of graphene, in particular under terahertz excitation, in saturable absorbers and fast detectors is highlighted. A room-temperature operated ultra-broadband graphene-based detector is presented.

Related publications

  • Invited lecture (Conferences)
    21st International Conference on Applied Electromagnetics and Communications, 14.-16.10.2013, Dubrovnik, Croatia

Permalink: https://www.hzdr.de/publications/Publ-19703
Publ.-Id: 19703