Adaptive multi-spectral mimicking with 2D-material nanoresonator networks

Yujie Luo, Thomas Christensen, Ognjen Ilic*

*Corresponding author for this work

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Abstract

Active nanophotonic materials that can emulate and adapt between many different spectral profiles—with high fidelity and over a broad bandwidth—could have a far-reaching impact, but are challenging to design due to a high-dimensional and complex design space. Here, we show that a metamaterial network of coupled 2D-material nanoresonators in graphene can adaptively match multiple complex absorption spectra via a set of input voltages. To design such networks, we develop a semi-analytical auto-differentiable dipole-coupled model that allows scalable optimization of high-dimensional networks with many elements and voltage signals. As a demonstration of multi-spectral capability, we design a single network capable of mimicking four spectral targets resembling select gases (nitric oxide, nitrogen dioxide, methane, nitrous oxide) with very high fidelity ( > 90 % ). Our results could impact the design of highly reconfigurable optical materials and platforms for applications in sensing, communication and display technology, and signature and thermal management.

Original languageEnglish
Article number075001
JournalJournal of Optics (United Kingdom)
Volume26
Issue number7
Number of pages10
ISSN2040-8978
DOIs
Publication statusPublished - 2024

Keywords

  • 2D materials
  • Metamaterials
  • Tunable optics

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