Fabry-Perot Interferometer with Quantum Mirrors: Nonlinear Light Transport and Rectification

Abstract

Optical transport represents a natural route towards fast communications, and it is currently used in large scale data transfer. The progressive miniaturization of devices for information processing calls for the microscopic tailoring of light transport and confinement at length scales appropriate for upcoming technologies. With this goal in mind, we present a theoretical analysis of a one-dimensional Fabry-Perot interferometer built with two highly saturable nonlinear mirrors: a pair of two-level systems. Our approach captures nonlinear and nonreciprocal effects of light transport that were not reported previously. Remarkably, we show that such an elementary device can operate as a microscopic integrated optical rectifier.

Light propagation through one-dimensional interacting open quantum systems

“…For two identical atoms and Γ L = Γ R , the asymmetry of nonlinear T 2 (t = ∞) around the mean frequency is absent when J z = 0. This spatially asymmetric and nonlinear refractive index is responsible for nonreciprocity in light propagation through such spatially asymmetric nonlinear media [60,64].…”

Quantum scattering theory of a single-photon Fock state in three-dimensional spaces

“…(1) without any approximation. The theoretical framework is built upon methods developed for electrons scattered by magnetic impurities in condensed matter physics [2,3] as well as recent progress in one-dimensional waveguide quantum electrodynamics [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Although we illustrate the theory based on single photons, the framework is fundamentally compatible with and can be extended to multi-photons.…”

Strongly coupled cold atoms in bilayer dense lattices

“…A black line in the bottom shows the simulation result for a=1.10π with fitted coefficients t 1 =t 2 =86.4% and r 1 =r 2 =13.6%. Exact calculations of r 1(2) and t 1(2) using quantum-mechanical framework have been presented in [27], where a pair of two-level atoms within a one-dimensional (1D) waveguide is considered as a model system. Deviation from numerical simulation is substantial for a small h p ( )as shown in figure 5, while it is negligible for a large h p ( ).…”

“…This suggests that a bilayer lattice formed by cold dense atoms can realize on-and off-states and therefore is a candidate system for a photonic device in quantum computing [13,17]. Finally, we discuss that each monolayer of a bilayer lattice could be modeled as an effective superatom acting as a mirror [26] with amplitude reflection and transmission coefficients [27] which makes it convenient for applying a Fabry-Pérot interferometer.…”