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Filtering by: Creator Chang, Yue-Guey Lee Academic Affiliation Physics

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...

Resource Type:

Article

Full Text:

WSe2 Induced By Intense Terahertz Pulses2 VIELA GUAY,1 NATHAN JOHNSON,1 , YUE ZHANG2 , AREND M. VAN3
High-field terahertz response of graphene

Creator:

Paul, M. J., Chang, Y. C., Thompson, Z. J., Stickel, A., Wardini, J., Choi, H., Minot, E. D., Norris, T. B., and Lee, Yun-Shik

Abstract:

We investigate the response of multi-layer epitaxial graphene and chemical vapor deposition (CVD)-grown single-layer graphene to strong terahertz (THz) fields. Contrary to theoretical predictions of strong nonlinear response, the transmitted fields exhibit no harmonic generation, indicating that the nonlinear response is limited by fast electron thermalization due to carrier-carrier scattering....

Resource Type:

Article

Full Text:

P L, Minot E D and Lee Y-S 2011 Terahertz imaging and time-domain spectroscopy of large-area single