Quantum theory of electron tunneling into intersubband cavity polariton states

Quantum vacuum properties of the intersubband cavity polariton field

Stimulated scattering and lasing of intersubband cavity polaritons.

We present a microscopic theory describing the stimulated scattering of intersubband polariton excitations in a microcavity-embedded two-dimensional electron gas. In particular, we consider the polariton scattering induced by the interaction with longitudinal optical phonons. Our theory demonstrates the possibility of final-state stimulation for the scattering of such composite excitations, acc...

Long wavelength enhanced Kerr nonlinearity via Fano-type interference in semiconductor quantum wells

The linear and nonlinear behaviors of susceptibility via tunable Fano-type interference, based on intersubband transitions in asymmetric double quantum wells (QWs) driven coherently by a probe laser field, are analyzed. It is shown that Kerr nonlinearity can be controlled competently by tuning the energy splitting of the two excited states (the coupling strength of the tunneling), i.e. Fano-typ...

- 1 - 8 . 4 Quantum Well Tunneling Devices

A INTRODUCTION Advances in epitaxy have permitted the design of semiconductor devices with sufficient precision to make use of quantum mechanical tunneling. The potential advantages of tunneling-based devices consist of high-speed operation and higher functionality inherent in their strongly nonlinear current-voltage characteristics, while the disadvantages include the relative weakness of quan...

How fast electrons and photons mix: Sub-cycle switching of intersubband cavity polaritons

Intersubband cavity polaritons in a quantum well waveguide structure are optically generated within less than one cycle of light by a femtosecond near-infrared pulse. Midinfrared probe transients trace the non-adiabatic switch-on of ultrastrong light-matter coupling and the conversion of bare photons into cavity polaritons directly in the time domain.