The in-plane terahertz (THz) surface plasmon polaritons (SPPs) coupler is a key element of
THz information transmission and processing. However, existing parallel coupler based on …

In this work, we introduce quantum-mechanical adiabatic passage into the design of spatial
acoustic four-waveguide (WG) couplers. Thanks to the agreement in form between the …

In this paper, we present a full quantum description for coupling mechanism of the
metamaterial. We start the derivation from quantum master equation to fit the spectrum of …

A fully numerical method for designing efficient adiabatic mode evolution structure
(AMES)(referred to as NAMES) is introduced, which can be applied to adiabatic taper …

In this article, a novel graphene subwavelength waveguide coupler is designed based on
the quantum control theory. Compared with metal surface plasmon polaritons (SPPs) …

In this paper, optical simulation of double rapid adiabatic passage (RAP) is investigated in
three evanescently coupled waveguides with longitudinally varying detunings of the …

We study the stability of counterdiabatic drive by computing the joint dependence of the
probability of nonadiabatic transitions P η (δ) on the adiabatic parameter δ and on the …

Two multi-functional graphene-based tunable beam splitters in terahertz band with different
incidence modes are proposed in this paper. For the first time, we have achieved multiple …

We investigate high-fidelity multiple beam splitting in Hermitian and non-Hermitian (NH)
symmetric coupled waveguides (WGs) with one input and 2 N output WG channels. In …

We theoretically perform a dressed state approach to investigate a fast adiabatic light
transfer and split in the three-waveguide coupled system. We compare the performance of …