“…In conclusion, a highly-compact and efficient tunable wide flat-top band-pass based on MIM plasmonic waveguide at NIR is suggested, and simulation results demonstrate that the transmission spectrum can be modulated by tuning a structural parameter. As a result, due to its miniaturized size, good out-of-band rejection, and high-efficiency compared to similar studies [9][10][11], it may find applications in tunable optical wireless communication systems and in on-chip integration.…”