Threshold resonances in a double well system

N. N. Korst, E. E. Nikitin

Si-Cong Tian, Ren-Gang Wan, Cunzhu Tong +1 more

The behavior of optical bistability (OB) in linear triple quantum dot molecules (QDMs) using double tunneling coupling by means of a unidirectional ring cavity is investigated. The linear and nonlinear susceptibilities of the system are also investigated. The double tunneling between the quantum dots can induce the interaction of double dark resonances, which can enhance the nonlinear response of the system. The type, the hysteresis loop, and the threshold of OB can be controlled by the intensity of the double tunneling and the detuning of the probe field. Our results give insights for future experiments and applications in optics using QDMs.

Xiang-an Yan, Liqiang Wang, Weiwei Zhang +2 more

We investigated the optical bistability (OB), which is manipulated by double dark resonances, in a [Formula: see text]-type four-level atomic system with a unidirectional ring cavity. It is found that, with the interaction of double dark resonances, the bistable threshold intensity becomes weaker and the hysteresis loop becomes narrower by tuning properly the detuning of microwave field. Also, the influence of the intensity and frequency detuning of the microwave field on switching on or off the optical bistable behavior is studied, which is used to provide the theoretical guidance for controlling and optimizing all optical switching process. Our numerical results are explained by using a dressed-state approach.

Christopher Feuillade, C. Böttcher

Gareth Davies

On the Origin of Quantisation of the Electromagnetic Field (the "photon"), Wave-Particle Duality, and Measurement in the Double-Slit Experiment Branched Flow of Continuous Electromagnetic Waves and Resonant Threshold Detection in a Polarisable Vacuum

Ilaria Cacciari, Paolo Moretti