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arXiv · 2510.12731

plasmonX: an Open-Source Code for Nanoplasmonics

Tommaso Giovannini·Pablo Grobas Illobre·Piero Lafiosca·Luca Nicoli·Luca Bonatti·Stefano Corni·Chiara Cappelli
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Abstract

We present the first public release of plasmonX, a novel open-source code for simulating the plasmonic response of complex nanostructures. The code supports both fully atomistic and implicit descriptions of nanomaterials. In particular, it employs the frequency-dependent fluctuating charges ($\omega$FQ) and dipoles ($\omega$FQF$\mu$) models to describe the response properties of atomistic structures, including simple and $d$-metals, graphene-based structures, and multi-metal nanostructures. For implicit representations, the Boundary Element Method is implemented in both the dielectric polarizable continuum model (DPCM) and integral equation formalism (IEF-PCM) variants. The distribution also includes a post-processing module that enables analysis of electric field-induced properties such as charge density and electric field patterns.

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Tommaso Giovannini, Pablo Grobas Illobre, Piero Lafiosca, Luca Nicoli, Luca Bonatti, Stefano Corni, Chiara Cappelli. 2025-10-14. plasmonX: an Open-Source Code for Nanoplasmonics. https://arxiv.org/abs/2510.12731

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