This page will be updated periodically with published journal papers directly supported by the Simons Foundation.

Year One

Our foundation-sponsored research publications in year one consisted of 85 journal papers published in several high-profile journals, including three Nature, nine Nature sub-journals, nine Physical Review Letters, three PNAS, three Optica, and two Proc. IEEE. Our work has been featured on eight journal covers this year, in four press releases, and it has been selected as Editor’s Pick three times.

collage of 8 science journal covers
Journal covers highlighting our work published in the past year (see complete list below)
1. Banerjee, D., Vitelli, V., Jülicher, F., & Surówka, P. (2021). Active Viscoelasticity of Odd Materials. Physical Review Letters, 126(13), 138001.
2. Abbaszadeh, H., Fruchart, M., Saarloos, W. van, & Vitelli, V. (2021). Liquid-crystal-based topological photonics. Proceedings of the National Academy of Sciences, 118(4), 2021.
3. Fruchart, M., Hanai, R., Littlewood, P. B., & Vitelli, V. (2021). Non-reciprocal phase transitions. Nature 2021 592:7854, 592(7854), 363–369.
4. Fallah, A., Kiasat, Y., Silveirinha, M. G., & Engheta, N. (2021). Nonreciprocal guided waves in the presence of swift electron beams. Physical Review B, 103(21), 214303.
5. Huidobro, P. A., Silveirinha, M. G., Galiffi, E., & Pendry, J. B. (2021). Homogenization Theory of Space-Time Metamaterials. Physical Review Applied, 16(1), 014044.
6. Morgado, T. A., & Silveirinha, M. G. (2021). Active Graphene Plasmonics with a Drift-Current Bias. ACS Photonics, 8(4), 1129–1136.
7. Fernández-Alcázar, L. J., Kononchuk, R., Li, H., & Kottos, T. (2021). Extreme Nonreciprocal Near-Field Thermal Radiation via Floquet Photonics. Physical Review Letters, 126(20), 204101.
8. Kononchuk, R., Feinberg, J., Knee, J., & Kottos, T. (2021). Enhanced avionic sensing based on Wigner’s cusp anomalies. Science Advances, 7(23).
9. Mencagli, M. J., Sounas, D. L., Fink, M., & Engheta, N. (2021). Static-to-dynamic field conversion with time-varying media.
10. Castaldi, G., Pacheco-Peña, V., Moccia, M., Engheta, N., & Galdi, V. (2021). Exploiting space-time duality in the synthesis of impedance transformers via temporal metamaterials. Nanophotonics, 10(14), 3687–3699.
11. Ramaniuk, A., Christodoulides, D. N., Assanto, G., Trippenbach, M., Jung, P. S., Krolikowski, W., Krolikowski, W., & Assanto, G. (2021). Scalar and vector supermode solitons owing to competing nonlocal nonlinearities. Optics Express, Vol. 29, Issue 6, Pp. 8015-8023, 29(6), 8015–8023.
12. Christodoulides, D. N., Wise, F. W., Pourbeyram, H., & Wu, Y. (2021). Weak beam self-cleaning of femtosecond pulses in the anomalous dispersion regime. Optics Letters, Vol. 46, Issue 13, Pp. 3312-3315, 46(13), 3312–3315.
13. Wu, F. O., Jung, P. S., Parto, M., Khajavikhan, M., & Christodoulides, D. N. (2020). Entropic thermodynamics of nonlinear photonic chain networks. Communications Physics 2020 3:1, 3(1), 1–7.
14. Zareei, A., Medina, E., & Bertoldi, K. (2021). Harnessing Mechanical Deformation to Reduce Spherical Aberration in Soft Lenses. Physical Review Letters, 126(8), 084301.
15. Li, S., Deng, B., Grinthal, A., Schneider-Yamamura, A., Kang, J., Martens, R. S., Zhang, C. T., Li, J., Yu, S., Bertoldi, K., & Aizenberg, J. (2021). Liquid-induced topological transformations of cellular microstructures. Nature 2021 592:7854, 592(7854), 386–391.
16. Castaldi, G., Pacheco-Peña, V., Moccia, M., Engheta, N., & Galdi, V. (2021). Exploiting space-time duality in the synthesis of impedance transformers via temporal metamaterials. Nanophotonics.
17. Mencagli, M. J., Sounas, D. L., Fink, M., & Engheta, N. (2021). Static-to-dynamic field conversion with time-varying media.
18. Pacheco-Peña, V., & Engheta, N. (2021). Temporal metamaterials with gain and loss.
19. Suwunnarat, S., Tang, Y., Reisner, M., Mortessagne, F., Kuhl, U., & Kottos, T. (2021). Towards a Broad-Band Coherent Perfect Absorption in systems without Scale-Invariance.
20. Shi, C., Kottos, T., & Shapiro, B. (2021). Controlling optical beam thermalization via band-gap engineering. Physical Review Research, 3(3), 033219.
21. Li, Y., Cohen, D., & Kottos, T. (2021). Enforcing Levy relaxation for multi-mode fibers with correlated disorder.
22. Silveirinha, M. G. (2021). Time-Crystal Model of the Electron Spin.
23. Bender, C. M., & Hook, D. W. (2021). $PT$-symmetric classical mechanics. PT Symmetry, 107–132.
24. Felski, A., Bender, C. M., Klevansky, S. P., & Sarkar, S. (2021). Towards perturbative renormalization of <math xmlns. Physical Review D, 104(8), 085011.
25. Bender, C. M., Felski, A., Klevansky, S. P., & Sarkar, S. (2021). PT Symmetry and Renormalisation in Quantum Field Theory.
26. Nassar, H., Yousefzadeh, B., Fleury, R., Ruzzene, M., Alù, A., Daraio, C., Norris, A. N., Huang, G., & Haberman, M. R. (2020). Nonreciprocity in acoustic and elastic materials. Nature Reviews Materials 2020 5:9, 5(9), 667–685.
27. Zhang, Z., Kang, M., Zhang, X., Feng, X., Xu, Y., Chen, X., Zhang, H., Xu, Q., Tian, Z., Zhang, W., Krasnok, A., Han, J., & Alù, A. (2020). Coherent Perfect Diffraction in Metagratings. Advanced Materials, 32(36), 2002341.
28. Li, H., Moussa, H., Sounas, D., & Alù, A. (2020). Parity-time Symmetry Based on Time Modulation. Physical Review Applied, 14(3), 031002.
29. Galiffi, E., Wang, Y.-T., Lim, Z., Pendry, J. B., Alù, A., & Huidobro, P. A. (2020). Wood Anomalies and Surface-Wave Excitation with a Time Grating. Physical Review Letters, 125(12), 127403.
30. Duggan, R., Mann, S. A., & Alù, A. (2020). Nonreciprocal photonic topological order driven by uniform optical pumping. Physical Review B, 102(10), 100303.
31. Wang, M., Krasnok, A., Lepeshov, S., Hu, G., Jiang, T., Fang, J., Korgel, B. A., Alù, A., & Zheng, Y. (2020). Suppressing material loss in the visible and near-infrared range for functional nanophotonics using bandgap engineering. Nature Communications 2020 11:1, 11(1), 1–9.
32. Li, A., Dong, J., Wang, J., Cheng, Z., Ho, J. S., Zhang, D., Wen, J., Zhang, X.-L., Chan, C. T., Alù, A., Qiu, C.-W., & Chen, L. (2020). Hamiltonian Hopping for Efficient Chiral Mode Switching in Encircling Exceptional Points. Physical Review Letters, 125(18), 187403.
33. Zangeneh-Nejad, F., Alù, A., & Fleury, R. (2020). Topological wave insulators: a review. Comptes Rendus. Physique, 21(4–5), 467–499.
35. Alù, A., Li, H., & Alù, A. (2021). Temporal switching to extend the bandwidth of thin absorbers. Optica, Vol. 8, Issue 1, Pp. 24-29, 8(1), 24–29.
36. Mekawy, A., & Alù, A. (2021). Giant midinfrared nonlinearity based on multiple quantum well polaritonic metasurfaces. Nanophotonics, 10(1), 667–678.
37. Tymchenko, M., Nagulu, A., Krishnaswamy, H., & Alu, A. (2021). Universal Frequency-Domain Analysis of N-Path Networks. IEEE Transactions on Circuits and Systems I: Regular Papers, 68(2), 569–580.
38. Bergman, A., Duggan, R., Sharma, K., Tur, M., Zadok, A., & Alù, A. (2021). Observation of anti-parity-time-symmetry, phase transitions and exceptional points in an optical fibre. Nature Communications 2021 12:1, 12(1), 1–9.
39. Li, J., Wang, M., Wu, Z., Li, H., Hu, G., Jiang, T., Guo, J., Liu, Y., Yao, K., Chen, Z., Fang, J., Fan, D., Korgel, B. A., Alù, A., & Zheng, Y. (2020). Tunable Chiral Optics in All-Solid-Phase Reconfigurable Dielectric Nanostructures. Nano Letters, 21(2), 973–979.
40. Xu, X., Kwon, H., Finch, S., Lee, J. Y., Nordin, L., Wasserman, D., Alù, A., & Dodabalapur, A. (2021). Reflecting metagrating-enhanced thin-film organic light emitting devices. Applied Physics Letters, 118(5), 053302.
41. Janković, N., & Alù, A. (2020). Glide-Symmetric Acoustic Waveguides for Extreme Sensing and Isolation. Physical Review Applied, 15(2).
42. Rasmussen, C., & Alù, A. (2021). Compressibility-Near-Zero Acoustic Radiation. Physical Review Applied, 15(2), 024022.
43. Overvig, A., Yu, N., & Alù, A. (2021). Chiral Quasi-Bound States in the Continuum. Physical Review Letters, 126(7), 073001.
44. Esfahlani, H., Mazor, Y., & Alù, A. (2021). Homogenization and design of acoustic Willis metasurfaces. Physical Review B, 103(5), 054306.
45. Ramaccia, D., Alù, A., Toscano, A., & Bilotti, F. (2021). Temporal multilayer structures for designing higher-order transfer functions using time-varying metamaterials. Applied Physics Letters, 118(10), 101901.
46. Overvig, A., & Alù, A. (2021). Wavefront-selective Fano resonant metasurfaces. Https://Doi.Org/10.1117/1.AP.3.2.026002, 3(2), 026002.
47. Mann, S. A., Mekawy, A., & Alù, A. (2021). Broadband Field Localization, Density of States, and Nonlinearity Enhancement in Nonreciprocal and Topological Hotspots. Physical Review Applied, 15(3), 034064.
48. Coppolaro, M., Moccia, M., Castaldi, G., Alu, A., & Galdi, V. (2021). Surface-Wave Propagation on Non-Hermitian Metasurfaces with Extreme Anisotropy. IEEE Transactions on Microwave Theory and Techniques, 69(4), 2060–2071.
49. Barbuto, M., Alu, A., Bilotti, F., & Toscano, A. (2021). Dual-Circularly Polarized Topological Patch Antenna with Pattern Diversity. IEEE Access, 9, 48769–48776.
50. Alù, A., Qiu, C.-W., Hu, G., Alù, A., & Alù, A. (2021). Twistronics for photons: opinion. Optical Materials Express, Vol. 11, Issue 5, Pp. 1377-1382, 11(5), 1377–1382.
51. Hu, G., Wang, M., Mazor, Y., Qiu, C.-W., & Alù, A. (2021). Tailoring Light with Layered and Moiré Metasurfaces. Trends in Chemistry, 3(5), 342–358.
52. Mekawy, A., Sounas, D. L., & Alù, A. (2021). Free-Space Nonreciprocal Transmission Based on Nonlinear Coupled Fano Metasurfaces. Photonics 2021, Vol. 8, Page 139, 8(5), 139.
53. Vakulenko, A., Kiriushechkina, S., Wang, M., Li, M., Zhirihin, D., Ni, X., Guddala, S., Korobkin, D., Alù, A., & Khanikaev, A. B. (2021). Near-Field Characterization of Higher-Order Topological Photonic States at Optical Frequencies. Advanced Materials, 33(18), 2004376.
54. Quan, L., Yves, S., Peng, Y., Esfahlani, H., & Alù, A. (2021). Odd Willis coupling induced by broken time-reversal symmetry. Nature Communications 2021 12:1, 12(1), 1–9.
55. Fang, J., Wang, M., Yao, K., Zhang, T., Krasnok, A., Jiang, T., Choi, J., Kahn, E., Korgel, B. A., Terrones, M., Li, X., Alù, A., & Zheng, Y. (2021). Directional Modulation of Exciton Emission Using Single Dielectric Nanospheres. Advanced Materials, 33(20), 2007236.
56. Mekawy, A., Li, H., Radi, Y., & Alù, A. (2021). Parametric Enhancement of Radiation from Electrically Small Antennas. Physical Review Applied, 15(5), 054063.
57. Nefedkin, N., Alù, A., & Krasnok, A. (2021). Quantum Embedded Superstates. Advanced Quantum Technologies, 4(6), 2000121.
58. Rasmussen, C., Quan, L., & Alù, A. (2021). Acoustic nonreciprocity. Journal of Applied Physics, 129(21), 210903.
59. Kawaguchi, Y., Li, M., Chen, K., Menon, V., Alù, A., & Khanikaev, A. B. (2021). Optical isolator based on chiral light-matter interactions in a ring resonator integrating a dichroic magneto-optical material. Applied Physics Letters, 118(24), 241104.
60. Guddala, S., Kawaguchi, Y., Komissarenko, F., Kiriushechkina, S., Vakulenko, A., Chen, K., Alù, A., M. Menon, V., & Khanikaev, A. B. (2021). All-optical nonreciprocity due to valley polarization pumping in transition metal dichalcogenides. Nature Communications 2021 12:1, 12(1), 1–9.
61. Krasnok, A., Alú, A., Jankovic, N., Sakotic, Z., & Jankovic, N. (2021). Topological scattering singularities and embedded eigenstates for polarization control and sensing applications. Photonics Research, Vol. 9, Issue 7, Pp. 1310-1323, 9(7), 1310–1323.
62. Li, H., Mekawy, A., & Alù, A. (2021). Gain-Free Parity-Time Symmetry for Evanescent Fields. Physical Review Letters, 127(1), 014301.
63. Mazor, Y., Cotrufo, M., & Alù, A. (2021). Unitary Excitation Transfer between Coupled Cavities Using Temporal Switching. Physical Review Letters, 127(1), 013902.
64. Li, M., Sinev, I., Benimetskiy, F., Ivanova, T., Khestanova, E., Kiriushechkina, S., Vakulenko, A., Guddala, S., Skolnick, M., Menon, V. M., Krizhanovskii, D., Alù, A., Samusev, A., & Khanikaev, A. B. (2021). Experimental observation of topological Z2 exciton-polaritons in transition metal dichalcogenide monolayers. Nature Communications 2021 12:1, 12(1), 1–10.
65. Alù, A., Kim, S., Ni, X., & Alù, A. (2021). Topological insulator in two synthetic dimensions based on an optomechanical resonator. Optica, Vol. 8, Issue 8, Pp. 1024-1032, 8(8), 1024–1032.
66. Chen, K., Weiner, M., Li, M., Ni, X., Alù, A., & Khanikaev, A. B. (2021). Nonlocal topological insulators: Deterministic aperiodic arrays supporting localized topological states protected by nonlocal symmetries. Proceedings of the National Academy of Sciences, 118(34), 2021.
67. Rasmussen, C., & Alù, A. (2021). Non-Foster acoustic radiation from an active piezoelectric transducer. Proceedings of the National Academy of Sciences, 118(30).
68. Farhat, M., Chen, P.-Y., Amin, M., Alù, A., & Wu, Y. (2021). Transverse acoustic spin and torque from pure spinning of objects. Physical Review B, 104(6), L060104.
69. Ma, W., Hu, G., Hu, D., Chen, R., Sun, T., Zhang, X., Dai, Q., Zeng, Y., Alù, A., Qiu, C.-W., & Li, P. (2021). Ghost hyperbolic surface polaritons in bulk anisotropic crystals. Nature 2021 596:7872, 596(7872), 362–366.
70. Cotrufo, M., Mann, S. A., Moussa, H., & Alu, A. (2021). Nonlinearity-Induced Nonreciprocity – Part II. IEEE Transactions on Microwave Theory and Techniques, 69(8), 3584–3597.
71. Cotrufo, M., Mann, S. A., Moussa, H., & Alu, A. (2021). Nonlinearity-Induced Nonreciprocity – Part I. IEEE Transactions on Microwave Theory and Techniques, 69(8), 3569–3583.