We can see jumps in peak spacing
and peak splittings, which means the multiple modes that we
are detecting. This is acceptable considering the large cross section
[24–26]. In wavevector space, these periodic peaks are equally
spaced at integral multiples of /Lz (Lz, wire length). Unfortunately,
the initialized wavevector value cannot be determined. Thus, the
electromagnetic mode in the nanowire was too hard to be carried
out. We need to perform more experiments to calculate the
electromagnetic modes in the future