Optical microcavity characterization via resonance spectra and modes
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arXiv
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| Format: | Preprint |
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2025
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| author | Post, Jonah He, Chunjiang Koks, Corné van Velzen, Rudi Corazza, Andrea Fontana, Yannik L. Erbe, Marcel Warburton, Richard J. van Exter, Martin P. |
| author_facet | Post, Jonah He, Chunjiang Koks, Corné van Velzen, Rudi Corazza, Andrea Fontana, Yannik L. Erbe, Marcel Warburton, Richard J. van Exter, Martin P. |
| contents | This paper describes how resonance spectra and mode profiles can be used to characterize and quantify the mode-shaping effects in open-access plano-concave optical microcavities. The presented semi-analytic theory is based on the application of perturbation theory to the roundtrip evolution of the optical field. It includes various mirror-shape and nonparaxial effects and extends the nonparaxial theory presented by van Exter et al. (2022, Phys. Rev. A 106, 013501) and verified by Koks et al. (2022, Phys. Rev. A 105, 063502) to the common case of an anisotropic Gaussian mirror. The presented measurements and analyses of resonance spectra and mode profiles demonstrate how the different mode-shaping effects can be individually distinguished and quantified. Spin-orbit coupling, which is one of the nonparaxial effects, is prominently visible in the intriguing polarization patterns of the resonant modes, while polarization tomography yields the shape-induced birefringence and associated polarization splitting of the fundamental modes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_06332 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optical microcavity characterization via resonance spectra and modes Post, Jonah He, Chunjiang Koks, Corné van Velzen, Rudi Corazza, Andrea Fontana, Yannik L. Erbe, Marcel Warburton, Richard J. van Exter, Martin P. Optics This paper describes how resonance spectra and mode profiles can be used to characterize and quantify the mode-shaping effects in open-access plano-concave optical microcavities. The presented semi-analytic theory is based on the application of perturbation theory to the roundtrip evolution of the optical field. It includes various mirror-shape and nonparaxial effects and extends the nonparaxial theory presented by van Exter et al. (2022, Phys. Rev. A 106, 013501) and verified by Koks et al. (2022, Phys. Rev. A 105, 063502) to the common case of an anisotropic Gaussian mirror. The presented measurements and analyses of resonance spectra and mode profiles demonstrate how the different mode-shaping effects can be individually distinguished and quantified. Spin-orbit coupling, which is one of the nonparaxial effects, is prominently visible in the intriguing polarization patterns of the resonant modes, while polarization tomography yields the shape-induced birefringence and associated polarization splitting of the fundamental modes. |
| title | Optical microcavity characterization via resonance spectra and modes |
| topic | Optics |
| url | https://arxiv.org/abs/2505.06332 |