Engineering the light coupling between metalens and photonic crystal resonators for robust on-chip microsystems

9 Mar 2021  ·  Yahui Xiao, Zi Wang, Feifan Wang, Hwaseob Lee, Thomas Kananen, Tingyi Gu ·

We designed an on-chip transformative optic system of a metalens-photonic crystal resonator metasystem on a foundry compatible silicon photonic platform. By adjusting the on-chip metalens' focusing length and mode dimension, the insertion loss between the metalens and the photonic crystal resonator and waveguide structures are minimized through mode-matching... The micro-system does not involve any single mode silicon nanowire waveguide, and thus mechanically robust without any oxide claddings. The proposed microsystem is ideal for miniaturized chemical and biosensors operating in air or solution environment. read more

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