{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,13]],"date-time":"2026-09-13T18:03:49Z","timestamp":1789322629810,"version":"build-2803163510"},"reference-count":51,"publisher":"Wiley","issue":"15","license":[{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Nanophotonics"],"published-print":{"date-parts":[[2026,8,13]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Terahertz (THz) optical components for power attenuation and dispersion management require materials that provide isotropic and band\u2010selective control of electromagnetic waves. However, two\u2010dimensional (2D) metasurfaces based on coherent lattice coupling exhibit polarization anisotropy and angular dispersion, which lead to phase distortion. Here, three\u2010dimensional (3D) bulk metamaterials (MMs) functioning as THz attenuators are proposed and experimentally demonstrated based on a de\u2010latticing strategy inspired by amorphous natural materials. Periodic arrays of cross\u2010bar meta\u2010atoms are encapsulated by cyclo\u2010olefin polymer (COP) as randomly oriented cubic meta\u2010grains and dispersed within a COP matrix, forming an amorphous composite that eliminates in\u2010plane coherence. The fabricated samples exhibit band\u2010selective and thickness\u2010tunable attenuation with a smooth refractive\u2010index variation across 0.3\u20130.4\u00a0THz. Compared with the 2D metasurface, the dispersion slope  decreases from 8.37 to 0.36 at the resonant frequency, indicating an order\u2010of\u2010magnitude suppression of phase dispersion. The attenuation scales continuously with thickness owing to incoherent resonant scattering from randomly oriented dipoles, providing a practical pathway to thickness\u2010dependent and band\u2010selective response. This work demonstrates an isotropic, low\u2010dispersion, and thickness\u2010tunable 3D bulk MMs\u00a0THz attenuator that overcomes the polarization anisotropy and strong dispersion of conventional 2D attenuators, offering a practical pathway toward integrated THz photonic systems.<\/jats:p>","DOI":"10.1002\/nap2.70203","type":"journal-article","created":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T11:01:51Z","timestamp":1786618911000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Band\u2010Selective, Low\u2010Dispersion Terahertz Attenuators Based on 3D Bulk Metamaterials Leveraging De\u2010latticed Cross\u2010Bar Resonator Ensembles"],"prefix":"10.1002","volume":"15","author":[{"given":"Zhen","family":"Liu","sequence":"first","affiliation":[{"name":"Graduate School of Engineering Tohoku University  Sendai Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chikaho","family":"Nagashima","sequence":"additional","affiliation":[{"name":"Graduate School of Engineering Tohoku University  Sendai Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiaki","family":"Kanamori","sequence":"additional","affiliation":[{"name":"Graduate School of Engineering Tohoku University  Sendai Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,13]]},"reference":[{"issue":"6","key":"e_1_2_11_2_1","first-page":"1121","article-title":"Terahertz Imaging: Widespread Industrial Application in Non\u2010Destructive Inspection and Chemical Analysis","volume":"5","author":"Fukasawa R.","year":"2015","journal-title":"IEEE Transactions on Terahertz Science and 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