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Proceedings Paper

Tuning the asymmetric response of metasurfaces for optical spatial filtering
Author(s): Timothy J. Davis; Fatima Eftekhari; Daniel E. Gómez; Ann Roberts
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Paper Abstract

The spatial filtering of optical signals has been demonstrated previously with metasurface thin-films created from arrays of structured optical elements. We consider the problem of changing the symmetry of their response with changes to the in-plane wavevector kI→-kI and show it can be tailored or even dynamically tuned. Our work is based on a general theory of metasurfaces constructed from non-diffracting arrays of coupled metal particles. We present the optical transfer function of such a metasurface, identify the physical properties essential for asymmetry and demonstrate its behaviour experimentally.

Paper Details

Date Published: 30 December 2019
PDF: 2 pages
Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 1120008 (30 December 2019); doi: 10.1117/12.2539797
Show Author Affiliations
Timothy J. Davis, The Univ. of Melbourne (Australia)
Fatima Eftekhari, Melbourne Ctr. for Nanofabrication (Australia)
Daniel E. Gómez, RMIT Univ. (Australia)
Ann Roberts, The Univ. of Melbourne (Australia)


Published in SPIE Proceedings Vol. 11200:
AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019
Arnan Mitchell; Halina Rubinsztein-Dunlop, Editor(s)

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