Control of photon transport in an optical structure of four microresonators using spectral engineering

Abstract

A theoretical model of a photonic switch based on a T-shaped optical structure with combined switching control is considered. The transmission coefficient of photons through the structure varies between current and vacuum modes by several physical mechanisms. The main one is the resonant interaction between microresonators with adjustable photon tunneling energy. An alternative way is also pump compensation by switching on an additional laser field. The influence of the model parameters on the switching efficiency is studied. It is shown that this scheme can be implemented on the basis of already existing technologies.

Generation of spatially entangled states in a photonic molecule containing a quantum dot

“…The triangular PM with C 3v -symmetry is an elementary three-terminal quantum node, the ports MR 1, MR 3 and MR 4 of which do not interact with each other directly, but only through the central MR 2 (we neglect their evanescent coupling). We considered such a structure in [28] as a singlephoton transistor operating in a steady-state regime. Photon transport through the PM was found to be efficiently controlled both by choosing MR parameters and by applying external fields.…”