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Proceedings Paper

On-chip wavefront shaping with dielectric metasurface
Author(s): Zi Wang; Tiantian Li; Lorry Chang; Feifan Wang; Yahui Xiao; Dun Mao; Thomas Kananen; Tingyi Gu
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Paper Abstract

Metasurfaces can be used for free-space wavefront shaping, which can generate an arbitrary phase shift with subwavelength thickness. We designed an integrated metasurface that can achieve on-chip spatial signal convertion with a ultracompact dimension and low loss (<1dB). The dielectric metalens integration can significantly reduce the taper length as well as making mechanically robust photonic crystal coupler with high transmission. The proposed integrated metasurfaces can be easily cascaded to achieve on-chip meta-system for signal processing. Here we demonstrated a metasystem that can perform the spatial differentiation and a deep learning meta-system that can achieve wavelength demultiplexing.

Paper Details

Date Published: 26 February 2020
PDF: 6 pages
Proc. SPIE 11290, High Contrast Metastructures IX, 112900I (26 February 2020); doi: 10.1117/12.2540979
Show Author Affiliations
Zi Wang, Univ. of Delaware (United States)
Tiantian Li, Univ. of Delaware (United States)
Lorry Chang, Univ. of Delaware (United States)
Feifan Wang, Univ. of Delaware (United States)
Yahui Xiao, Univ. of Delaware (United States)
Dun Mao, Univ. of Delaware (United States)
Thomas Kananen, Univ. of Delaware (United States)
Tingyi Gu, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 11290:
High Contrast Metastructures IX
Connie J. Chang-Hasnain; Andrei Faraon; Weimin Zhou, Editor(s)

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