Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities

Emmanouil G. Mavrotsoupakis; Leonidas Mouchliadis; Junhui Cao; Minoas C. Chairetis; Marios E. Triantafyllou-Rundell; Eleni C. P. Macropulos; Giannis G. Paschos; Apostolos Pantousas; Huaying Liu; Alexey V. Kavokin; Hamid Ohadi; Constantinos C. Stoumpos; Pavlos G. Savvidis

doi:10.1038/s41377-025-01852-8

Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities

Emmanouil G. Mavrotsoupakis, Leonidas Mouchliadis, Junhui Cao, Minoas C. Chairetis, Marios E. Triantafyllou-Rundell, Eleni C. P. Macropulos, Giannis G. Paschos, Apostolos Pantousas, Huaying Liu, Alexey V. Kavokin, Hamid Ohadi, Constantinos C. Stoumpos, Pavlos G. Savvidis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Photonic Rashba-Dresselhaus coupling in anisotropic microcavities offers a compelling platform for realizing unconventional topological states with non-zero Berry curvature. In this study, we explore a self-assembled two-dimensional hybrid structure composed of anisotropically oriented organic/inorganic halide perovskite layers confined within a microcavity. The strong optical anisotropies of these perovskite systems, driven by significant refractive index contrasts and robust excitonic resonances at room temperature, enable the emergence of synthetic magnetic fields that mediate photonic and polaritonic interactions. The interplay between polarization-dependent modes and spatial inversion symmetry breaking gives rise to strong photonic Rashba-Dresselhaus spin-orbit coupling, leading to distinct modifications in band topology and energy dispersions. These effects result in the formation of unconventional topological features, including non-zero Berry curvature and off-axis diabolical points, within the photonic and polaritonic bands at room temperature. Our findings reveal the critical role of optical and geometric anisotropies in engineering synthetic gauge fields for light, providing a versatile approach for designing photonic systems with novel topological properties. By leveraging the unique properties of halide perovskites and their ability to support both room-temperature excitons and large birefringence, this work advances the development of polaritonic platforms for applications in topological photonics and spinoptronics.

Original language	English
Article number	207
Pages (from-to)	1-10
Number of pages	10
Journal	Light: Science & Applications
Volume	14
DOIs	https://doi.org/10.1038/s41377-025-01852-8
Publication status	Published - 29 May 2025

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Perovskite dipolaritons for room tempera: Perovskite Dipolaritons for Room Temperature Quantum Applications
Ohadi, H. (PI)
The Leverhulme Trust
2/01/23 → 1/01/26
Project: Standard

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Mavrotsoupakis, E. G., Mouchliadis, L., Cao, J., Chairetis, M. C., Triantafyllou-Rundell, M. E., Macropulos, E. C. P., Paschos, G. G., Pantousas, A., Liu, H., Kavokin, A. V., Ohadi, H., Stoumpos, C. C., & Savvidis, P. G. (2025). Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities. Light: Science & Applications, 14, 1-10. Article 207. https://doi.org/10.1038/s41377-025-01852-8

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title = "Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities",

abstract = "Photonic Rashba-Dresselhaus coupling in anisotropic microcavities offers a compelling platform for realizing unconventional topological states with non-zero Berry curvature. In this study, we explore a self-assembled two-dimensional hybrid structure composed of anisotropically oriented organic/inorganic halide perovskite layers confined within a microcavity. The strong optical anisotropies of these perovskite systems, driven by significant refractive index contrasts and robust excitonic resonances at room temperature, enable the emergence of synthetic magnetic fields that mediate photonic and polaritonic interactions. The interplay between polarization-dependent modes and spatial inversion symmetry breaking gives rise to strong photonic Rashba-Dresselhaus spin-orbit coupling, leading to distinct modifications in band topology and energy dispersions. These effects result in the formation of unconventional topological features, including non-zero Berry curvature and off-axis diabolical points, within the photonic and polaritonic bands at room temperature. Our findings reveal the critical role of optical and geometric anisotropies in engineering synthetic gauge fields for light, providing a versatile approach for designing photonic systems with novel topological properties. By leveraging the unique properties of halide perovskites and their ability to support both room-temperature excitons and large birefringence, this work advances the development of polaritonic platforms for applications in topological photonics and spinoptronics.",

author = "Mavrotsoupakis, {Emmanouil G.} and Leonidas Mouchliadis and Junhui Cao and Chairetis, {Minoas C.} and Triantafyllou-Rundell, {Marios E.} and Macropulos, {Eleni C. P.} and Paschos, {Giannis G.} and Apostolos Pantousas and Huaying Liu and Kavokin, {Alexey V.} and Hamid Ohadi and Stoumpos, {Constantinos C.} and Savvidis, {Pavlos G.}",

note = "Funding: P.G.S. and G.P. acknowledge the support of Innovation Program for Quantum Science and Technology (2023ZD0300300), Westlake University project No. 041020100118 and Zhejiang Provincial Natural Science Foundation (XHD24A2401). L.M. and P.G.S. acknowledge financial support from the Horizon EIC-2022-Pathfinderchallenges-01 Heisingberg project 101114978. A.V.K. acknowledges the Saint Petersburg State University for the Research Grant No. 125022803069-4. H.O. acknowledges support from the Leverhulme Trust through grant No. RPG-2022-188. C.C.S. acknowledges support by the Ministry of Science and Higher Education of the Russian Federation (Megagrant no. 075-15-2022-1112) and from the Special Account for Research Funding of the University of Crete (grants KA10330 and KA10652).",

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month = may,

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doi = "10.1038/s41377-025-01852-8",

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Mavrotsoupakis, EG, Mouchliadis, L, Cao, J, Chairetis, MC, Triantafyllou-Rundell, ME, Macropulos, ECP, Paschos, GG, Pantousas, A, Liu, H, Kavokin, AV, Ohadi, H, Stoumpos, CC & Savvidis, PG 2025, 'Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities', Light: Science & Applications, vol. 14, 207, pp. 1-10. https://doi.org/10.1038/s41377-025-01852-8

TY - JOUR

T1 - Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities

AU - Mavrotsoupakis, Emmanouil G.

AU - Mouchliadis, Leonidas

AU - Cao, Junhui

AU - Chairetis, Minoas C.

AU - Triantafyllou-Rundell, Marios E.

AU - Macropulos, Eleni C. P.

AU - Paschos, Giannis G.

AU - Pantousas, Apostolos

AU - Liu, Huaying

AU - Kavokin, Alexey V.

AU - Ohadi, Hamid

AU - Stoumpos, Constantinos C.

AU - Savvidis, Pavlos G.

N1 - Funding: P.G.S. and G.P. acknowledge the support of Innovation Program for Quantum Science and Technology (2023ZD0300300), Westlake University project No. 041020100118 and Zhejiang Provincial Natural Science Foundation (XHD24A2401). L.M. and P.G.S. acknowledge financial support from the Horizon EIC-2022-Pathfinderchallenges-01 Heisingberg project 101114978. A.V.K. acknowledges the Saint Petersburg State University for the Research Grant No. 125022803069-4. H.O. acknowledges support from the Leverhulme Trust through grant No. RPG-2022-188. C.C.S. acknowledges support by the Ministry of Science and Higher Education of the Russian Federation (Megagrant no. 075-15-2022-1112) and from the Special Account for Research Funding of the University of Crete (grants KA10330 and KA10652).

PY - 2025/5/29

Y1 - 2025/5/29

N2 - Photonic Rashba-Dresselhaus coupling in anisotropic microcavities offers a compelling platform for realizing unconventional topological states with non-zero Berry curvature. In this study, we explore a self-assembled two-dimensional hybrid structure composed of anisotropically oriented organic/inorganic halide perovskite layers confined within a microcavity. The strong optical anisotropies of these perovskite systems, driven by significant refractive index contrasts and robust excitonic resonances at room temperature, enable the emergence of synthetic magnetic fields that mediate photonic and polaritonic interactions. The interplay between polarization-dependent modes and spatial inversion symmetry breaking gives rise to strong photonic Rashba-Dresselhaus spin-orbit coupling, leading to distinct modifications in band topology and energy dispersions. These effects result in the formation of unconventional topological features, including non-zero Berry curvature and off-axis diabolical points, within the photonic and polaritonic bands at room temperature. Our findings reveal the critical role of optical and geometric anisotropies in engineering synthetic gauge fields for light, providing a versatile approach for designing photonic systems with novel topological properties. By leveraging the unique properties of halide perovskites and their ability to support both room-temperature excitons and large birefringence, this work advances the development of polaritonic platforms for applications in topological photonics and spinoptronics.

AB - Photonic Rashba-Dresselhaus coupling in anisotropic microcavities offers a compelling platform for realizing unconventional topological states with non-zero Berry curvature. In this study, we explore a self-assembled two-dimensional hybrid structure composed of anisotropically oriented organic/inorganic halide perovskite layers confined within a microcavity. The strong optical anisotropies of these perovskite systems, driven by significant refractive index contrasts and robust excitonic resonances at room temperature, enable the emergence of synthetic magnetic fields that mediate photonic and polaritonic interactions. The interplay between polarization-dependent modes and spatial inversion symmetry breaking gives rise to strong photonic Rashba-Dresselhaus spin-orbit coupling, leading to distinct modifications in band topology and energy dispersions. These effects result in the formation of unconventional topological features, including non-zero Berry curvature and off-axis diabolical points, within the photonic and polaritonic bands at room temperature. Our findings reveal the critical role of optical and geometric anisotropies in engineering synthetic gauge fields for light, providing a versatile approach for designing photonic systems with novel topological properties. By leveraging the unique properties of halide perovskites and their ability to support both room-temperature excitons and large birefringence, this work advances the development of polaritonic platforms for applications in topological photonics and spinoptronics.

U2 - 10.1038/s41377-025-01852-8

DO - 10.1038/s41377-025-01852-8

M3 - Article

SN - 2047-7538

VL - 14

SP - 1

EP - 10

JO - Light: Science & Applications

JF - Light: Science & Applications

M1 - 207

ER -

Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities

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Perovskite dipolaritons for room tempera: Perovskite Dipolaritons for Room Temperature Quantum Applications

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