Engineering dielectric and metallic metasurfaces for sensing applications in the near-infrared region

Pankaj Arora; Debajani Mahanta; Pritham Raghunanth; Harsh Chindalia; Nitika Grover

doi:10.1117/12.3000540

13 March 2024 Engineering dielectric and metallic metasurfaces for sensing applications in the near-infrared region

Pankaj Arora, Debajani Mahanta, Pritham Raghunanth, Harsh Chindalia, Nitika Grover

Proceedings Volume PC12896, Photonic and Phononic Properties of Engineered Nanostructures XIV; PC128961E (2024) https://doi.org/10.1117/12.3000540
Event: SPIE OPTO, 2024, San Francisco, California, United States

Conference Poster

Abstract

Dielectric and metallic metasurfaces are proposed to demonstrate the sensing applications in the near-infrared region under normal incidence light. The geometrical parameters of the proposed metasurfaces are designed using Rigorous coupled analysis under wavelength interrogation, and the results are verified using Comsol Multiphysics software. A layer of 2D nanomaterial (MoS2) is considered to increase the adsorption on the sensing surface. Aluminum-based metallic metasurfaces offer a sensitivity of 1100nm/RIU with a figure of merit of 250 RIU-1. The proposed metasurfaces are further used for the detection of cancer cells in human blood, and a red shift in the wavelength spectra is observed due to the increase in the refractive index.

Citation Download Citation

Pankaj Arora, Debajani Mahanta, Pritham Raghunanth, Harsh Chindalia, and Nitika Grover "Engineering dielectric and metallic metasurfaces for sensing applications in the near-infrared region", Proc. SPIE PC12896, Photonic and Phononic Properties of Engineered Nanostructures XIV, PC128961E (13 March 2024); https://doi.org/10.1117/12.3000540

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