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Nonlinear Photocarrier Dynamics in Multilayer WSe2 Induced by Intense Terahertz Pulses

Creator:

Guay, Viela, Johnson, Nathan, Zhang, Yue, Van Der Zande, Arend M., Thorp, Spencer G., Graham, Matthew, and Lee, Yun-Shik

Abstract:

Non-equilibrium photocarriers in multilayer WSe2 injected by femtosecond laser pulses exhibit extraordinary nonlinear dynamics in the presence of intense THz fields. The THz absorption in optically excited WSe2 rises rapidly in the low THz field regime and gradually ramp up at high intensities. The strong THz pulses drive the photocarriers...

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Article

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DER ZANDE,2,3 SPENCER G. THORP,1 MATTHEW GRAHAM,1 AND4 YUN-SHIK LEE,1,*5 1Department of Physics
Ultrafast Nonlinear Optical Effects in Semiconductor Quantum Wells Resonantly Driven by Strong Few-Cycle Terahertz Pulses

Creator:

Tomaino, J. L., Jameson, A. D., Lee, Yun-Shik, Prineas, J. P., Steiner, J. T., Kira, M., and Koch, S. W.

Abstract:

Intraexciton transitions in semiconductor quantum wells are modulated by strong and tunable few-cycle terahertz pulses. Time-resolved terahertz-pump and optical-probe measurements demonstrate that the 1s heavy-hole and light-hole exciton resonances undergo large-amplitude spectral modulations when the terahertz radiation is tuned near the 1s–2p intraexciton transition. The strong nonlinear optical transients exhibit...

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Article

Full Text:

, Yun-Shik Lee a,* , J. P. Prineas b , J. T. Steiner c , M. Kira c , and S. W. Koch c a

ScholarsArchive@OSU

Nonlinear Photocarrier Dynamics in Multilayer WSe2 Induced by Intense Terahertz Pulses

Ultrafast Nonlinear Optical Effects in Semiconductor Quantum Wells Resonantly Driven by Strong Few-Cycle Terahertz Pulses

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