We study ultrafast hot electron transport in n-doped InGaAs using polarization-sensitive nonlinear THz-pump/THz-probe spectroscopy. We observe an anisotropic effective mass for hot electrons due to the nonparabolicity of the conduction band.
© 2010 The Optical Society
F. Blanchard, F. Su, L. Razzari, G. Sharma, R. Morandotti, T. Ozaki, M. Reid, and F. Hegmann, "Anisotropy of Hot Electron Effective Mass in n-Doped InGaAs Revealed by Nonlinear THz-Pump/THz-Probe Spectroscopy," in Conference on Lasers and Electro-Optics 2010, OSA Technical Digest (CD) (Optical Society of America, 2010), paper CMP6.
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