Time-Resolved Second Harmonic Generation Polarimetry Study of Elemental Tellurium

ORAL

Abstract

Elemental tellurium (Te) is a chiral semiconductor that breaks inversion symmetry, which allows for strong optical second harmonic generation (SHG). We performed time-resolved SHG polarimetry measurements on Te single crystals to understand the effects of inter-band carrier excitations on its lattice structure. I will describe the contrasting temporal evolution of the structure and charge excitations as a function of both temperature and pump fluence.

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Presenters

  • Honglie Ning

    Institute for Quantum Information and Matter, California Institute of Technology

Authors

  • Honglie Ning

    Institute for Quantum Information and Matter, California Institute of Technology

  • Omar Mehio

    Institute for Quantum Information and Matter, California Institute of Technology

  • Eli Zoghlin

    University of California, Santa Barbara, Materials Department, University of California, Santa Barbara, Materials, University of California, Santa Barbara

  • Nicholas Laurita

    Johns Hopkins University, Institute for Quantum Information and Matter, California Institute of Technology, Caltech, Department of Physics, California Institute of Technology

  • Stephen Wilson

    University of California, Santa Barbara, Materials Department, University of California, Santa Barbara, Materials, University of California Santa Barbara, Materials, University of California, Santa Barbara, UC Santa Barbara

  • David Hsieh

    California Institute of Technology, Institute for Quantum Information and Matter, California Institute of Technology, Caltech, Caltech, Physics, Math & Astronomy, Physics, California Institute of Technology, Department of Physics, California Institute of Technology