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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.21726 |
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| _version_ | 1866909697763704832 |
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| author | Méndez-Galván, Melissa Saucedo-Chávez, Zaira Medrano, Diana Zuarez-Chamba, Michael Rojas-Sánchez, J Andrés García-Jomaso, Yesenia A. Ordóñez-Romero, César L. Pirruccio, Giuseppe Camacho-Guardian, Arturo Soler-Illia, Galo J. A. A. Lara-García, Hugo A. |
| author_facet | Méndez-Galván, Melissa Saucedo-Chávez, Zaira Medrano, Diana Zuarez-Chamba, Michael Rojas-Sánchez, J Andrés García-Jomaso, Yesenia A. Ordóñez-Romero, César L. Pirruccio, Giuseppe Camacho-Guardian, Arturo Soler-Illia, Galo J. A. A. Lara-García, Hugo A. |
| contents | We report a scalable and cost-effective method for fabricating high-performance Bragg mirrors using a bottom-up approach that combines evaporation-induced self-assembly (EISA) and dip-coating. The photonic crystals are composed of alternating mesoporous SiO$_2$ and dense TiO$_2$ layers, providing a high refractive index contrast ($\sim$0.8). This enables strong reflectance (up to 96%) with as few as five bilayers and precise control of the photonic stop band across the visible spectrum by simply adjusting the deposition parameters. Integration of a thin film of the two-dimensional perovskite (PEA)$_2$PbI$_4$ leads to strong light--matter coupling at room temperature. Angle-resolved reflectance and photoluminescence measurements reveal the formation of upper and lower polariton branches, with a Rabi splitting of 90 meV. The observed polaritonic dispersion is well described by a two-level system and Green's function formalism. This work demonstrates an efficient strategy for constructing tunable optical cavities using simple solution-based methods. The combination of high optical quality, spectral tunability, and strong coupling performance positions this platform as a promising candidate for low-threshold polariton lasers, nonlinear optics, and integrated optoelectronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_21726 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Scalable Dip-Coated Bragg Mirrors for Strong Light-Matter Coupling with 2D Perovskites Méndez-Galván, Melissa Saucedo-Chávez, Zaira Medrano, Diana Zuarez-Chamba, Michael Rojas-Sánchez, J Andrés García-Jomaso, Yesenia A. Ordóñez-Romero, César L. Pirruccio, Giuseppe Camacho-Guardian, Arturo Soler-Illia, Galo J. A. A. Lara-García, Hugo A. Mesoscale and Nanoscale Physics Materials Science Optics We report a scalable and cost-effective method for fabricating high-performance Bragg mirrors using a bottom-up approach that combines evaporation-induced self-assembly (EISA) and dip-coating. The photonic crystals are composed of alternating mesoporous SiO$_2$ and dense TiO$_2$ layers, providing a high refractive index contrast ($\sim$0.8). This enables strong reflectance (up to 96%) with as few as five bilayers and precise control of the photonic stop band across the visible spectrum by simply adjusting the deposition parameters. Integration of a thin film of the two-dimensional perovskite (PEA)$_2$PbI$_4$ leads to strong light--matter coupling at room temperature. Angle-resolved reflectance and photoluminescence measurements reveal the formation of upper and lower polariton branches, with a Rabi splitting of 90 meV. The observed polaritonic dispersion is well described by a two-level system and Green's function formalism. This work demonstrates an efficient strategy for constructing tunable optical cavities using simple solution-based methods. The combination of high optical quality, spectral tunability, and strong coupling performance positions this platform as a promising candidate for low-threshold polariton lasers, nonlinear optics, and integrated optoelectronic devices. |
| title | Scalable Dip-Coated Bragg Mirrors for Strong Light-Matter Coupling with 2D Perovskites |
| topic | Mesoscale and Nanoscale Physics Materials Science Optics |
| url | https://arxiv.org/abs/2506.21726 |