Data from: A Model of a Temporal Method to Determine the Refractive Index Change in a Dual Ring Resonator

This paper describes the simulation and modelling of a novel temporal
method to determine the refractive index change in a dual ring micro-ring
resonator. The refractive index change information of a covering analyte
of the sense resonator is realized as a modulated output signal. Two
dimensional Finite difference time domain (FDTD) is used to graphically
demonstrate the temporal operation. The beam propagation method (BPM) and
the finite element method (FEM) are used to determine coupling
coefficients, ring loss and effective index. As a result of the dual ring
resonator’s geometrical arrangement, the sensor output undergoes a
modulated wavelength (or frequency) shift from the micrometre wavelength
(or terahertz frequency) to a centimetre wavelength (or gigahertz
frequency) range. BPM and FEM data obtained from partial micro-ring arcs
and a derived temporal equation are used in a MATLAB program to model the
temporal output. The minimum down converted frequency realized in this
model is 1.8 gigahertz (from 192.9 terahertz), corresponding to an analyte
refractive index change of 35.63x10-6 in the sense micro-ring. The maximum
down converted frequency is 14.44 gigahertz (from 192.9 terahertz), which
corresponds to an analyte refractive index change of 285.55x10-6 in the
sense micro-ring. The limit of detection is 10.3x10-6RIU.