Ultrafast Mid-IR Carrier Dynamics in Three-Dimensional Dirac Semimetal Cd3As2

Chunhui Zhu; Xiang Yuan; Yongbing Xu; Faxian Xiu; Fengqiu Wang

2015 Conference on Lasers and Electro-Optics Pacific Rim
(Optica Publishing Group, 2015),
paper 26C2_6

Ultrafast Mid-IR Carrier Dynamics in Three-Dimensional Dirac Semimetal Cd₃As₂

Chunhui Zhu, Xiang Yuan, Yongbing Xu, Faxian Xiu, and Fengqiu Wang

Conference on Lasers and Electro-Optics/Pacific Rim 2015

Busan Republic of Korea
24–28 August 2015
ISBN: 978-1-4673-7110-0

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C. Zhu, X. Yuan, Y. Xu, F. Xiu, and F. Wang, "Ultrafast Mid-IR Carrier Dynamics in Three-Dimensional Dirac Semimetal Cd3As2," in 2015 Conference on Lasers and Electro-Optics Pacific Rim, (Optica Publishing Group, 2015), paper 26C2_6.

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Abstract

We investigated ultrafast carrier dynamics in Cd₃As₂ at 2.6 μm. Single-exponential decay and saturable absorption features are observed. The ultrafast optical nonlinearity suggests that Cd₃As₂ is useful for mode-locking lasers in the mid-IR range.

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