can reliably represent the vectorial nature of electromagnetic coupling. Another widely studied phenomena arising in electromagnetically coupled systems is Fano-like resonance, where a dark element is coupled to a bright element. The dark element cannot be directly excited by the incident field, but the coupling between the dark mode and the bright mode allows the dark mode to be indirectly excited. To reconstruct this phenomena, we mimicked the dolmen configuration [@Gallinet2011a] using a dark element with two horizontal nanorods and a bright element with a vertical nanorod (Fig. \[fig:toymodel\]c). Only $(\alpha_{e1}^{e1})_{y}^{y}$ component is considered for the bright element, and $(\alpha_{e1}^{e1})_{x}^{x}$, $(\alpha_{m1}^{m1})_{z}^{z}$, $(\alpha_{e2}^{m1})_{xy}^{z}$, $(\alpha_{m1}^{e2})_{z}^{xy}$, and $(\alpha_{e2}^{e2})_{xy}^{xy}$ components are considered for the dark element as Fig. \[fig:PDB\]. The calculated scattering cross-section shows a dip near 570 nm, where the dark element has resonance, and this dip grows larger as $g$ becomes smaller due to the stronger coupling between the dark and bright elements.

The spectra calculated using multipole methods using the truncated $\boldsymbol{\alpha}$-tensors (solid lines) show excellent quantitative agreement with the reference (dashed-lines and cross-marks), but the error grows larger as $g$ decreases (Fig. \[fig:toymodel\]). This is because multipoles are efficient in describing long-range interactions but not in describing strong coupling between 