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4 October 2024 Unidirectional and synergistic imaging in the mid-infrared using metasurfaces with engineered disorder
Romil Audhkhasi, Anna Wirth-Singh, Maksym V. Zhelyeznyakov, Arka Majumdar
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Proceedings Volume PC13149, Unconventional Imaging, Sensing, and Adaptive Optics 2024; PC1314902 (2024) https://doi.org/10.1117/12.3026853
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
We design large aperture, all-silicon meta-optic doublets for unidirectional and synergistic imaging at a wavelength of 4 μm. When illuminated by a plane wave in the forward mode, our unidirectional imager generates an intense spot on its optic axis at a predefined focal length. In the reverse mode, the imaging performance is significantly reduced, accompanied by a dramatic reduction in light intensity on the focal plane. On the other hand, our synergistic imager is optimized to focus an incoming plane wave only when its constituent meta-optics are used in conjunction with each other. We envision our devices to provide new avenues for the development of metamaterial imaging platforms for applications in defense and data security.
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Romil Audhkhasi, Anna Wirth-Singh, Maksym V. Zhelyeznyakov, and Arka Majumdar "Unidirectional and synergistic imaging in the mid-infrared using metasurfaces with engineered disorder", Proc. SPIE PC13149, Unconventional Imaging, Sensing, and Adaptive Optics 2024, PC1314902 (4 October 2024); https://doi.org/10.1117/12.3026853
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KEYWORDS
Diseases and disorders
Design
Infrared imaging
Infrared radiation
Optical metamaterials
Imaging systems
Mathematical modeling
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