Mendoza-Castro, Jesus HernanVorobev, Artem S.Iadanza, SimoneLendl, BernhardO'Faolain, LiamGrande, Marco2024-05-162024-05-162024-05-162024-04-0810.1364/OE.504912https://infoscience.epfl.ch/handle/20.500.14299/208008WOS:001214680500001Silicon-based Micro Ring Resonators (MRR) are a powerful tool for the realization of label free optical biosensors. The sharp edge of a Fano resonance in a Silicon Nitride (Si3N4) platform can boost photonic sensing applications based on MRRs. In this work, we demonstrate enhanced Fano resonance features for a Si3N4 Micro Ring Resonator assisted by a Photonic Crystal Nanobeam (PhCN-MRR) operating in the TM-like mode at the O-band wavelengths. Our findings show that the fabricated PhCN-MRR results in increased asymmetric resonances for TM-like mode compared with TE-like mode operation in the C-band. As a result, a versatile and flexible design to realize Fano resonance with polarization dependent asymmetry in the C and O telecom bands is presented.Physical SciencesSensortext::journal::journal article::research article