Helicity- and Azimuthal-Dependent Topological Photocurrents in Bi2Se3 using THz Spectroscopy

Enhancement of helicity-dependent topological photocurrents in epitaxially-grown Bi 2 Se 3 with reduced twinning is investigated with polarization-sensitive time-domain THz spectroscopy. Strong dependence of the circular and linear photogalvanic effects are observed to correlate with the azimuthal a...

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Bibliographic Details
Published in2022 Conference on Lasers and Electro-Optics (CLEO) pp. 1 - 2
Main Authors Connelly, Blair C., De Coster, George J., Taylor, Patrick J.
Format Conference Proceeding
LanguageEnglish
Published OSA 01.05.2022
Subjects
Azimuthal angle
Electo-optic effects
Epitaxial growth
Photoconductivity
Photovoltaic effects
Spectroscopy
Time-domain analysis
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Summary:Enhancement of helicity-dependent topological photocurrents in epitaxially-grown Bi 2 Se 3 with reduced twinning is investigated with polarization-sensitive time-domain THz spectroscopy. Strong dependence of the circular and linear photogalvanic effects are observed to correlate with the azimuthal angle.