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.

–

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