Fig. 4
Measured dependence of diagonal and off-diagonal elements in the non-Hermitian Hamiltonian (Eq. 1) on the Mie scatterer width. a Resonance wavelength detuning versus the notch width W for three adjacent modes marked as λ1-3, with the incremental step of ΔW = 20 nm. The resonance wavelength of the modes is between 1520 and 1530 nm. b Comparison of measured and modeled (dashed curve) on-resonance transmission and reflection versus designed Mie scatterer width W. The grey curve is CMT mode prediction. c Total quality factor extracted from the transmission spectra (T1→3) versus normalized forward scattering coefficient |X12|/γt (extracted from the normalized reflection R1→4/T1→3). The grey triangles, blue dots and black squares are experimental data for the three adjacent modes separated by 2 nm free spectral range. The dashed grey curve and line in a and c are eye guiders. The grey curve in b is predicted by CMT model