{
  "abstract": "The emission and absorption of thermal radiation are usually coupled via Kirchhoff's law or reciprocity, stated as the equality of spectral directional emissivity and absorptivity. Magneto-optical materials have recently been identified as a promising route to lifting the constraint of reciprocity, with multiple experimental demonstrations using doped InAs. However, these demonstrations have been limited to p-polarized light in the Voigt configuration, whereas thermal radiation from a blackbody is unpolarized. Therefore, to break reciprocity in both polarization channels, we design a nanophotonic, dual-polarized nonreciprocal absorber operating in the mid-infrared spectral range (11-20 $\\unicode{x03BC}$m), consisting of an a-Si photonic crystal slab on top of a doped InAs substrate described by an antisymmetric, nonreciprocal dielectric tensor under an applied magnetic field. The photonic crystal slab supports eigenmodes that couple to both s- and p-polarized light, resulting in absorption peaks that frequency shift in opposite directions for forward- and backward-propagating light$\\unicode{x2014}$a signature of nonreciprocity in planar, subwavelength systems. We fabricate our design, then measure its room-temperature absorptance using magnetic-field-integrated absorptance spectroscopy, experimentally demonstrating nonreciprocal absorption for both polarizations. Our design is a step toward the complete control of light as heat, which could improve photonic energy conversion, thermal management, and mid-infrared optical isolation and circulation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.00607",
  "author_total": 5,
  "authors": [
    {
      "name": "Simo Pajovic"
    },
    {
      "name": "Yiting Zhao"
    },
    {
      "name": "Yae-Chan Lim"
    },
    {
      "name": "Ruzan Sokhoyan"
    },
    {
      "name": "Harry A. Atwater"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/30tgzwevvw7cq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.00607",
  "fulltext_url": null,
  "id": "30tgzwevvw7cq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.00607",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "2504|Metamaterials and Metasurfaces Applications"
    ]
  ],
  "openalex": "W7206159451",
  "pdf_url": "https://arxiv.org/pdf/2609.00607",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/30tgzwevvw7cq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.00607",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.00607"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Dual-polarized, mid-infrared nonreciprocal absorption",
  "title_text": "Dual-polarized, mid-infrared nonreciprocal absorption",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/30tgzwevvw7cq",
  "venue": "arXiv",
  "versions": []
}