Kaung Hsiung Wu

TL;DR: In this article, Bismuth selenide (Bi 2 Se 3 ) thin films were grown on SrTiO 3 (111) (STO) substrates using pulsed laser deposition (PLD).

TL;DR: Maximal intensity of the absorption peak of the rigid layer mode E'(2) is proposed as a criterion for identification of optimal Te-doping in GaSe crystals, which was confirmed by experimental results on the efficiency of THz generation by optical rectification.

TL;DR: A systematic study of the ultrafast dynamics of monolayer MoS2 including spin randomization, exciton dissociation, free carrier relaxation, and electron-hole recombination by helicity- and photon energy-resolved transient spectroscopy.

TL;DR: In this article, the authors reported the thickness dependence of topological insulator Bi 2 Te 3 thin films grown by pulsed laser deposition (PLD) with respect to structural, morphological, magneto-transport properties as well as terahertz (THz) response in the 0.25 to 2.25 GHz range.

TL;DR: In this paper, the polarity of the emitted terahertz radiation is controlled by both the incident angle and the helicity of optical pulses, and an unprecedented decomposition-recombination procedure in the time domain is used to separate the signals of the Dirac fermions from bulk contributions.