Single-layer resonant metasurfaces as versatile IR sensors, polarizers, filters, and reflectors

Robert Magnusson; Yeong H. Ko; Kyu J. Lee; Fairooz A. Simlan; Pawarat Bootpakdeetam; Renjie Chen; Debra Wawro Weidanz; Susanne Gimlin; Soroush Ghaffari

doi:10.1117/12.3021205

7 June 2024 Single-layer resonant metasurfaces as versatile IR sensors, polarizers, filters, and reflectors

Robert Magnusson, Yeong H. Ko, Kyu J. Lee, Fairooz A. Simlan, Pawarat Bootpakdeetam, Renjie Chen, Debra Wawro Weidanz, Susanne Gimlin, Soroush Ghaffari

Author Affiliations +

Proceedings Volume 13048, Radar Sensor Technology XXVIII; 1304804 (2024) https://doi.org/10.1117/12.3021205
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

Subwavelength resonant lattices fashioned as nano- and microstructured films represent a basis for a host of device concepts. Whereas the canonical physical properties are fully embodied in a one-dimensional periodic lattice, the final device constructs are often patterned in two-dimensionally-modulated films in which case we may refer to them as photonic crystal slabs, metamaterials, or metasurfaces. These surfaces can support lateral modes and localized field signatures with propagative and evanescent diffraction channels critically controlling the response. The governing principle of guided-mode, or lattice, resonance enables diverse spectral expressions such that a single-layer component can behave as a sensor, reflector, filter, or polarizer. This structural sparsity contrasts strongly with the venerable field of multi-layer thin-film optics that is basis for most optical components on the market today. The lattice resonance effect can be exploited in all major spectral regions with appropriate low-loss materials and fabrication resources. In this paper, we highlight resonant device technology and present our work on design, fabrication, and characterization of optical elements operating in the near-IR, mid-IR, and long-wave IR spectral regions. Examples of fabricated and tested devices include biological sensors, high-contrast-ratio polarizers, narrow-band notch filters, and wideband high reflectors.

Conference Presentation

Citation Download Citation

Robert Magnusson, Yeong H. Ko, Kyu J. Lee, Fairooz A. Simlan, Pawarat Bootpakdeetam, Renjie Chen, Debra Wawro Weidanz, Susanne Gimlin, and Soroush Ghaffari "Single-layer resonant metasurfaces as versatile IR sensors, polarizers, filters, and reflectors", Proc. SPIE 13048, Radar Sensor Technology XXVIII, 1304804 (7 June 2024); https://doi.org/10.1117/12.3021205

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