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arXiv · 2205.03123

Impact of surface charge depletion on the free electron nonlinear response of heavily doped semiconductors

Federico De Luca·Cristian Ciracì
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Abstract

We propose surface modulation of the equilibrium charge density as a technique to control and enhance, via an external static potential, the free electron nonlinear response of heavily doped semiconductors. Within a hydrodynamic perturbative approach, we predict a two order of magnitude boost of free electron third-harmonic generation.

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Federico De Luca, Cristian Ciracì. 2022-05-06. Impact of surface charge depletion on the free electron nonlinear response of heavily doped semiconductors. https://doi.org/10.1103/physrevlett.129.123902

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