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Q: Fachverband Quantenoptik und Photonik

Q 71: Nano-Optics

Q 71.3: Vortrag

Freitag, 15. März 2024, 15:00–15:15, HS 3219

Magnetoplasmonic routing components: isolator, switch, circulator — •Sevag Abadian, Michail Symeonidis, Marian Bogdan Sirbu, Tolga Tekin, and Anil Palaci — Fraunhofer IZM, Gustav-Meyer-Allee 25/Gebäude 17, 13355 Berlin

The surge in data traffic driven by mobile apps, high-definition content, IoT, and AR is intensifying the demand for data centers to rapidly process and store massive amounts of information. PICs hold promise for data centers by potentially reducing power consumption and space requirements while optimizing data traffic management. Advancement of routing components which play a pivotal role in enabling efficient and seamless data flow across diverse applications, is a must. To achieve these functionalities, a medium that breaks spatial and time symmetry is necessary. Among the different mechanisms used, magneto-plasmonics has emerged as an efficient tool to be exploited. Plasmonic slot waveguides can host coupled SPP modes which under external magnetization, loose their symmetric and anti-symmetric modal profiles and become asymmetric and anti-asymmetric. For isolators, this opens up the way for switching the light path in the forward and backward directions between the parallel plasmonic interfaces, allowing the creation of high amplitude difference when the backward travelling wave is completely absorbed or radiated by cavities or gratings. For switches or circulators, this opens up the way for switching the light path to one of the two or three arms. Magneto-plasmonics has emerged as a satisfactory solutions for integratable routing components with high efficiency and small footprint.

Keywords: Plasmonics; Magnetooptics; Slot waveguides, MDM, DMD; Coupled SPP modes, LRSPP, SRSPP; Routing components, isolator, switch, circulator