Snapshots of Dirac Fermions near the Dirac Point in Topological Insulators

• DOI: 10.1364/up.2014.08.tue.p2.31
• Publication Date: 2014-07-11T13:48:33Z
• Authors: C. W. Luo; H. J. Wang; S. A. Ku; H.-J. Chen; T. T. Yeh; J.-Y. Lin; K. H. Wu; J. Y. Juang; B. L. Young; T. Kobayashi; C.-M. Cheng; C.-H. Chen; K.-D. Tsuei; F. C. Chou
• Keywords: 0301 basic medicine; 03 medical and health sciences

We utilized a ultrafast optical pump mid-infrared probe to explore the dynamics of Dirac fermions near the Dirac point in topological insulator. The femtosecond snapshots of the relaxation process were revealed by the ultrafast optics.