Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2

J.L. Boland; C.Q. Xia; D.A. Damry; P. Schonherr; T. Hesjedal; Laura M Herz; M.B. Johnston

doi:10.1109/IRMMW-THz46771.2020.9370806

Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2

J.L. Boland, C.Q. Xia, D.A. Damry, P. Schonherr, T. Hesjedal, Laura M Herz, M.B. Johnston

EEE - Academic & Research

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

We employ ultrafast optical-pump terahertz-probe spectroscopy and ultrafast THz emission spectroscopy to investigate the ultrafast charge carrier dynamics in the 3D Dirac semi-metal CdAs. We extract the temperature-dependent electron mobility (16,000cmVs at 5K) for CdAs nanowire ensemble. We also demonstrate strong THz emission from both CdAs single crystal and nanowires, whose polarity depends strongly on incident angle and pump polarisation.

Original language	English
Title of host publication	2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020
Publisher	IEEE
Pages	389
Number of pages	1
ISBN (Electronic)	9781728166209
ISBN (Print)	9781728166209
DOIs	https://doi.org/10.1109/IRMMW-THz46771.2020.9370806
Publication status	Published - 8 Nov 2020

Publication series

Name	International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
Volume	2020-November
ISSN (Print)	2162-2027
ISSN (Electronic)	2162-2035

Research Beacons, Institutes and Platforms

Photon Science Institute

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10.1109/IRMMW-THz46771.2020.9370806

Cite this

Boland, J. L., Xia, C. Q., Damry, D. A., Schonherr, P., Hesjedal, T., Herz, L. M., & Johnston, M. B. (2020). Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2. In 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020 (pp. 389). Article 9370806 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2020-November). IEEE. https://doi.org/10.1109/IRMMW-THz46771.2020.9370806

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title = "Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2",

abstract = "We employ ultrafast optical-pump terahertz-probe spectroscopy and ultrafast THz emission spectroscopy to investigate the ultrafast charge carrier dynamics in the 3D Dirac semi-metal CdAs. We extract the temperature-dependent electron mobility (16,000cmVs at 5K) for CdAs nanowire ensemble. We also demonstrate strong THz emission from both CdAs single crystal and nanowires, whose polarity depends strongly on incident angle and pump polarisation.",

author = "J.L. Boland and C.Q. Xia and D.A. Damry and P. Schonherr and T. Hesjedal and Herz, {Laura M} and M.B. Johnston",

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year = "2020",

month = nov,

day = "8",

doi = "10.1109/IRMMW-THz46771.2020.9370806",

language = "English",

isbn = "9781728166209",

series = "International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz",

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Boland, JL, Xia, CQ, Damry, DA, Schonherr, P, Hesjedal, T, Herz, LM & Johnston, MB 2020, Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2. in 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020., 9370806, International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, vol. 2020-November, IEEE, pp. 389. https://doi.org/10.1109/IRMMW-THz46771.2020.9370806

Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2. / Boland, J.L.; Xia, C.Q.; Damry, D.A. et al.
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. IEEE, 2020. p. 389 9370806 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz; Vol. 2020-November).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2

AU - Boland, J.L.

AU - Xia, C.Q.

AU - Damry, D.A.

AU - Schonherr, P.

AU - Hesjedal, T.

AU - Herz, Laura M

AU - Johnston, M.B.

PY - 2020/11/8

Y1 - 2020/11/8

N2 - We employ ultrafast optical-pump terahertz-probe spectroscopy and ultrafast THz emission spectroscopy to investigate the ultrafast charge carrier dynamics in the 3D Dirac semi-metal CdAs. We extract the temperature-dependent electron mobility (16,000cmVs at 5K) for CdAs nanowire ensemble. We also demonstrate strong THz emission from both CdAs single crystal and nanowires, whose polarity depends strongly on incident angle and pump polarisation.

AB - We employ ultrafast optical-pump terahertz-probe spectroscopy and ultrafast THz emission spectroscopy to investigate the ultrafast charge carrier dynamics in the 3D Dirac semi-metal CdAs. We extract the temperature-dependent electron mobility (16,000cmVs at 5K) for CdAs nanowire ensemble. We also demonstrate strong THz emission from both CdAs single crystal and nanowires, whose polarity depends strongly on incident angle and pump polarisation.

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U2 - 10.1109/IRMMW-THz46771.2020.9370806

DO - 10.1109/IRMMW-THz46771.2020.9370806

M3 - Conference contribution

SN - 9781728166209

T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz

SP - 389

BT - 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020

PB - IEEE

ER -

Boland JL, Xia CQ, Damry DA, Schonherr P, Hesjedal T, Herz LM et al. Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2. In 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2020. IEEE. 2020. p. 389. 9370806. (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz). doi: 10.1109/IRMMW-THz46771.2020.9370806

Unveiling the ultrafast optoelectronic properties of 3D Dirac semi-metal Cd3As2

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