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10 March 2020 Inverse design of absorptive chiral metasurfaces (Conference Presentation)
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Abstract
We present subwavelength chiral metasurfaces with freeform geometries obtained from an inverse design algorithm. These metasurfaces possess simultaneously a desired transmission, reflection and absorption spectrum at the wavelength of interest, a feature which is difficult to achieve for regular metasurfaces comprised of discrete shapes due to the limited degrees of freedom in the design. These absorptive metasurfaces could potentially be useful in display technologies by eliminating reflected ambient light, while transmitting the desired image. They have the potential to surpass the performance of traditional circular polarization analyzers and filters.
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Alexander Y. Zhu, Zhujun Shi, Wei Ting Chen, Yao-Wei Huang, Cheng-Wei Qiu, and Federico Capasso "Inverse design of absorptive chiral metasurfaces (Conference Presentation)", Proc. SPIE 11289, Photonic and Phononic Properties of Engineered Nanostructures X, 112890Q (10 March 2020); https://doi.org/10.1117/12.2544522
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