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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.02684 |
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| _version_ | 1866908630917316608 |
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| author | Wu, Jingxu Yang, Yifan Shi, Jie Yin, Yuwei He, Yifan Li, Chenjia |
| author_facet | Wu, Jingxu Yang, Yifan Shi, Jie Yin, Yuwei He, Yifan Li, Chenjia |
| contents | This work presents a fully theoretical and self consistent framework for calculating the third-order nonlinear susceptibility of CdSe/ZnS--MOF composite quantum dots. The approach unifies finite-potential quantum confinement,the Liouville von Neumann density matrix expansion to third order, and effective-medium electrodynamics (Maxwell--Garnett and Bruggeman) within a single Hamiltonian-based model, requiring no empirical fitting. Electron hole quantized states and dipole matrix elements are obtained under the effective-mass approximation with BenDaniel--Duke boundary conditions; closed analytic forms for(including Lorentzian/Voigt broadening) follow from the response expansion. Homogenization yields macroscopic scaling laws that link microscopic descriptors (core radius, shell thickness, dielectric mismatch) to bulk coefficients and. A Kramers--Kronig consistency check confirms causality and analyticity of the computed spectra with small residuals. The formalism provides a predictive, parameter-transparent route to engineer third-order nonlinearity in hybrid quantum materials,clarifying how size and environment govern the magnitude and dispersion of. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_02684 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Self-Consistent Theoretical Framework for Third-Order Nonlinear Susceptibility in CdSe/ZnS--MOF Quantum Dot Composites Wu, Jingxu Yang, Yifan Shi, Jie Yin, Yuwei He, Yifan Li, Chenjia Mesoscale and Nanoscale Physics This work presents a fully theoretical and self consistent framework for calculating the third-order nonlinear susceptibility of CdSe/ZnS--MOF composite quantum dots. The approach unifies finite-potential quantum confinement,the Liouville von Neumann density matrix expansion to third order, and effective-medium electrodynamics (Maxwell--Garnett and Bruggeman) within a single Hamiltonian-based model, requiring no empirical fitting. Electron hole quantized states and dipole matrix elements are obtained under the effective-mass approximation with BenDaniel--Duke boundary conditions; closed analytic forms for(including Lorentzian/Voigt broadening) follow from the response expansion. Homogenization yields macroscopic scaling laws that link microscopic descriptors (core radius, shell thickness, dielectric mismatch) to bulk coefficients and. A Kramers--Kronig consistency check confirms causality and analyticity of the computed spectra with small residuals. The formalism provides a predictive, parameter-transparent route to engineer third-order nonlinearity in hybrid quantum materials,clarifying how size and environment govern the magnitude and dispersion of. |
| title | Self-Consistent Theoretical Framework for Third-Order Nonlinear Susceptibility in CdSe/ZnS--MOF Quantum Dot Composites |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.02684 |