Aoni, Rifat AhmmedManjunath, ShridharYu, YuRahmani, MohsenXu, LeiMiroshnichenko, AndreyNeshev, Dragomir2022-10-123-5 AugustR. A. Aoni, S. Manjunath, Y. Yu, M. Rahmani, L. Xu, A. E. Miroshnichenko, and D. Neshev, "Dielectric Huygens Metagrating-Based Refractive Index Sensor," in 14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020), OSA Technical Digest (Optica Publishing Group, 2020), paper C9E_3.978-0-646-82504-5http://hdl.handle.net/1885/274492We propose a novel concept for refractive-index optical sensing with enhanced sensitivity and robustness to source intensity. The design is based on dielectric Huygens' met gratings and shows 26 times higher sensitivity than conventional blazed gratings.application/pdfen-AU© 2020 The Author(s)202010.1364/CLEOPR.2020.C9E_32021-11-28