A plasmonic splitter based on slot cavity

Abstract

A plasmonic splitter based on slot cavity is proposed and numerically investigated using finite-difference-time-domain (FDTD) methods. The structure consists of the input waveguide, a slot cavity and output waveguides. By varying positions of output waveguides, frequency splitter and power splitter can be achieved in the proposed structure. Flexible output power ratio is feasible through further adjusting the coupling distance and the refractive index of output waveguides.

Controlled mode tuning in 1-D ‘RIM’ plasmonic crystal trench cavities probed with coupled optical emitters

“…This would be useful, for example, to study the difference in plasmon-matter interaction of molecules in and out of resonance with the cavity mode, as has been demonstrated in dielectric optical microcavities [3]. In plasmonic structures, such deterministic control over low Q (broadband) resonances has been shown, and continuous tuning of non-deterministic high Q resonances has been achieved [21][22][23][24]. However, the low Q and/or non-deterministic nature of these previous works limited their application results in limited applicability to cQED studies.…”

A Wave Splitter with Simple Structure Based on Biaxial Anisotropic Medium

“…Nowadays, available technology can separate electromagnetic waves by their different power, mode, or frequency according to different engineering applications [24][25][26][27][28]. The wave splitter based on biaxial anisotropic medium we design in this paper can separate electromagnetic waves by polarization.…”

Plasmonic tunable filter based on trapezoid resonator waveguide

“…The MIM waveguides are more compact and easier to integrate into photonic circuits in comparison with traditional waveguide devices. Based on MIM, several different waveguide structures have been numerically and/or experimentally demonstrated, such as U-shaped waveguides [3], splitters [4], Y-shaped combiners [5], multimode interferometers [6], couplers [7,8], Mach-Zehnder interferometers [9,10], and so on. The photonic filters based on MIM have been proposed extensively in optical systems.…”