In-plane nonlinear optical and transport properties of quantum wells at terahertz frequencies.

摘要

In-plane nonlinear response of quasi-two dimensional degenerate electron gas (Q-2DEG) systems is explored theoretically and experimentally. Calculations of the third order nonlinear susceptibility arising from band nonparabolicity in narrow gap semiconductors, ;The quasi-two dimensional systems are realized by InAs/Al;In order to determine the contribution of the nonlinear response from energy dependent relaxation rates, ;The infrared transmission of the InAs/Al