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Monticone, F., Mortensen, N. A., Fernández-Domínguez, A. I., Luo, Y., Zheng, X., Tserkezis, C....Miller, D. A. B. (2025). Nonlocality in photonic materials and metamaterials: Roadmap. Optical Materials Express. 15 (7), 1544-1709

F. Monticone et al.,  "Nonlocality in photonic materials and metamaterials: Roadmap", in Optical Materials Express, vol. 15, no. 7, pp. 1544-1709, 2025

@article{monticone2025_1765119395711,
	author = "Monticone, F. and Mortensen, N. A. and Fernández-Domínguez, A. I. and Luo, Y. and Zheng, X. and Tserkezis, C. and Khurgin, J. B. and Shahbazyan, T. V. and Chaves, A. J. and Peres, N. M. R. and Wegner, G. and Busch, K. and Hu, H. and Della Sala, F. and Zhang, P. and Ciracì, C. and Aizpurua, J. and Babaze, A. and Borisov, A. G. and Chen, X.-W. and Christensen, T. and Yan, W. and Yang, Y. and Hohenester, U. and Huber, L. and Wubs, M. and De Liberato, S. and Gonçalves, P. A. D. and García de Abajo, F. J. and Hess, O. and Tarasenko, I. and Cox, J. D. and Jelver, L. and Dias, E. J. C. and Sánchez Sánchez, M. and Margetis, D. and Gómez-Santos, G. and Vasilevskiy, I. M. and Stauber, T. and Tretyakov, S. and Simovski, C. and Pakniyat, S. and Gómez-Díaz, J. S. and Bondarev, I. V. and Biehs, S.-A. and Boltasseva, A. and Shalaev, V. M. and Krasavin, A. V. and Zayats, A. V. and Alù, A. and Song, J.-H. and Brongersma, M. L. and Levy, U. and Long, O. Y. and Guo, C. and Fan, S. and Bozhevolnyi, S. I. and Overvig, A. and Prudêncio, F. R. and Silveirinha, M. G. and Gangaraj, S. A. H. and Argyropoulos, C. and Huidobro, P. A. and Galiffi, E. and Yang, F. and Pendry, J. B. and Miller, D. A. B.",
	title = "Nonlocality in photonic materials and metamaterials: Roadmap",
	journal = "Optical Materials Express",
	year = "2025",
	volume = "15",
	number = "7",
	doi = "10.1364/OME.559374",
	pages = "1544-1709",
	url = "https://opg.optica.org/ome/home.cfm"
}

TY  - JOUR
TI  - Nonlocality in photonic materials and metamaterials: Roadmap
T2  - Optical Materials Express
VL  - 15
IS  - 7
AU  - Monticone, F.
AU  - Mortensen, N. A.
AU  - Fernández-Domínguez, A. I.
AU  - Luo, Y.
AU  - Zheng, X.
AU  - Tserkezis, C.
AU  - Khurgin, J. B.
AU  - Shahbazyan, T. V.
AU  - Chaves, A. J.
AU  - Peres, N. M. R.
AU  - Wegner, G.
AU  - Busch, K.
AU  - Hu, H.
AU  - Della Sala, F.
AU  - Zhang, P.
AU  - Ciracì, C.
AU  - Aizpurua, J.
AU  - Babaze, A.
AU  - Borisov, A. G.
AU  - Chen, X.-W.
AU  - Christensen, T.
AU  - Yan, W.
AU  - Yang, Y.
AU  - Hohenester, U.
AU  - Huber, L.
AU  - Wubs, M.
AU  - De Liberato, S.
AU  - Gonçalves, P. A. D.
AU  - García de Abajo, F. J.
AU  - Hess, O.
AU  - Tarasenko, I.
AU  - Cox, J. D.
AU  - Jelver, L.
AU  - Dias, E. J. C.
AU  - Sánchez Sánchez, M.
AU  - Margetis, D.
AU  - Gómez-Santos, G.
AU  - Vasilevskiy, I. M.
AU  - Stauber, T.
AU  - Tretyakov, S.
AU  - Simovski, C.
AU  - Pakniyat, S.
AU  - Gómez-Díaz, J. S.
AU  - Bondarev, I. V.
AU  - Biehs, S.-A.
AU  - Boltasseva, A.
AU  - Shalaev, V. M.
AU  - Krasavin, A. V.
AU  - Zayats, A. V.
AU  - Alù, A.
AU  - Song, J.-H.
AU  - Brongersma, M. L.
AU  - Levy, U.
AU  - Long, O. Y.
AU  - Guo, C.
AU  - Fan, S.
AU  - Bozhevolnyi, S. I.
AU  - Overvig, A.
AU  - Prudêncio, F. R.
AU  - Silveirinha, M. G.
AU  - Gangaraj, S. A. H.
AU  - Argyropoulos, C.
AU  - Huidobro, P. A.
AU  - Galiffi, E.
AU  - Yang, F.
AU  - Pendry, J. B.
AU  - Miller, D. A. B.
PY  - 2025
SP  - 1544-1709
SN  - 2159-3930
DO  - 10.1364/OME.559374
UR  - https://opg.optica.org/ome/home.cfm
AB  - Photonic technologies continue to drive the quest for new optical materials with unprecedented responses. A major frontier in this field is the exploration of nonlocal (spatially dispersive) materials, going beyond the local, wavevector-independent assumption traditionally adopted in optical material modeling. The growing interest in plasmonic, polaritonic, and quantum materials has revealed naturally occurring nonlocalities, emphasizing the need for more accurate models to predict and design their optical responses. This has major implications also for topological, nonreciprocal, and time-varying systems based on these material platforms. Beyond natural materials, artificially structured materials—metamaterials and metasurfaces—can provide even stronger and engineered nonlocal effects, emerging from long-range interactions or multipolar effects. This is a rapidly expanding area in the field of photonic metamaterials, with open frontiers yet to be explored. In metasurfaces, in particular, nonlocality engineering has emerged as a powerful tool for designing strongly wavevector-dependent responses, enabling enhanced wavefront control, spatial compression, multifunctional devices, and wave-based computing. Furthermore, nonlocality and related concepts play a critical role in defining the ultimate limits of what is possible in optics, photonics, and wave physics. This Roadmap aims to survey the most exciting developments in nonlocal photonic materials and metamaterials, highlight new opportunities and open challenges, and chart new pathways that will drive this emerging field forward—toward new scientific discoveries and technological advancements.
ER  -