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Proceedings Paper

Inverse design of absorptive chiral metasurfaces (Conference Presentation)

Paper 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.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11289, Photonic and Phononic Properties of Engineered Nanostructures X, 112890Q (10 March 2020);
Show Author Affiliations
Alexander Y. Zhu, Harvard Univ. (United States)
Zhujun Shi, Harvard Univ. (United States)
Wei Ting Chen, Harvard Univ. (United States)
Yao-Wei Huang, Harvard Univ. (United States)
Cheng-Wei Qiu, National Univ. of Singapore (Singapore)
Federico Capasso, Harvard Univ. (United States)


Published in SPIE Proceedings Vol. 11289:
Photonic and Phononic Properties of Engineered Nanostructures X
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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