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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.17206 |
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| _version_ | 1866910057654910976 |
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| author | Jureidini, Juan Carlos Obeso Reitz, Michael Fowler-Wright, Piper Koner, Arghadip Nasari, Hadiseh Alù, Andrea Yuen-Zhou, Joel |
| author_facet | Jureidini, Juan Carlos Obeso Reitz, Michael Fowler-Wright, Piper Koner, Arghadip Nasari, Hadiseh Alù, Andrea Yuen-Zhou, Joel |
| contents | We investigate the effect of nonrelativistic motion on the emission dynamics of a dipole emitter moving next to a reflecting interface. Within the formalism of macroscopic QED, we obtain a general equation of motion for the dipole amplitude in terms of the dyadic Green's function, yielding a dynamical extension of the Drexhage effect. At short dipole-surface distances, the dipole can be described as a parametric oscillator featuring time-dependent dampings and Lamb shifts, both arising from the self-induced modulation of the surrounding electromagnetic environment. Importantly, these time-dependent parameters do not always average out, leading to amplification of the dipole amplitude and the radiated intensity when considering certain sinusoidal trajectories with specific modulation amplitudes and frequencies. We derive threshold modulation amplitudes as function of the relative permittivities at the interface. Qualitatively, in the vicinity of certain epsilon-near-zero materials, amplification is possible purely by modulation of the damping. Our findings open up avenues for the dynamic control of light-matter interaction in nanophotonic environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_17206 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Dynamical Drexhage Effect: Amplified Emission in Time-Modulated Electromagnetic Environments Jureidini, Juan Carlos Obeso Reitz, Michael Fowler-Wright, Piper Koner, Arghadip Nasari, Hadiseh Alù, Andrea Yuen-Zhou, Joel Optics Quantum Physics We investigate the effect of nonrelativistic motion on the emission dynamics of a dipole emitter moving next to a reflecting interface. Within the formalism of macroscopic QED, we obtain a general equation of motion for the dipole amplitude in terms of the dyadic Green's function, yielding a dynamical extension of the Drexhage effect. At short dipole-surface distances, the dipole can be described as a parametric oscillator featuring time-dependent dampings and Lamb shifts, both arising from the self-induced modulation of the surrounding electromagnetic environment. Importantly, these time-dependent parameters do not always average out, leading to amplification of the dipole amplitude and the radiated intensity when considering certain sinusoidal trajectories with specific modulation amplitudes and frequencies. We derive threshold modulation amplitudes as function of the relative permittivities at the interface. Qualitatively, in the vicinity of certain epsilon-near-zero materials, amplification is possible purely by modulation of the damping. Our findings open up avenues for the dynamic control of light-matter interaction in nanophotonic environments. |
| title | Dynamical Drexhage Effect: Amplified Emission in Time-Modulated Electromagnetic Environments |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2603.17206 |