All-dielectric meta-optic diodes

Sang-Yeon Cho; Michele Cotrufo; Andrea Alù; Jason Sun; Weimin Zhou

doi:10.1117/12.2648435

17 March 2023 All-dielectric meta-optic diodes

Sang-Yeon Cho, Michele Cotrufo, Andrea Alù, Jason Sun, Weimin Zhou

Proceedings Volume PC12432, High Contrast Metastructures XII; PC124320G (2023) https://doi.org/10.1117/12.2648435
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Unidirectional transmission is a fundamental function in signal processing. In electronic systems, simple semiconductor p–n diodes provide one-way transmission for electrical signals. In the optical domain, however, achieving one-way transmission is difficult because it requires breaking the time-reversal symmetry of light–matter interaction. Previously, magneto-optic effects have been successfully utilized to break the reciprocity of light–matter interaction. Here, we propose a meta-optic diode that supports nonreciprocal light transmission through excitation of asymmetric quasi-bound waves. The meta-optic diode consists of an ultrathin dielectric slab, patterned with two types of subwavelength resonator arrays. The proposed approach is based on the lifetime engineering of the resonant modes in the arrays and the inherent Kerr nonlinearity of the dielectric slab.

Conference Presentation

Citation Download Citation

Sang-Yeon Cho, Michele Cotrufo, Andrea Alù, Jason Sun, and Weimin Zhou "All-dielectric meta-optic diodes", Proc. SPIE PC12432, High Contrast Metastructures XII, PC124320G (17 March 2023); https://doi.org/10.1117/12.2648435

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