Coherence in resonance fluorescence
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
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| _version_ | 1866908448381206528 |
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| author | Wang, Xu-Jie Huang, Guoqi Li, Ming-Yang Wang, Yuan-Zhuo Liu, Li Wu, Bang Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Ji, Weijie Jiao, Rongzhen Yin, Hua-Lei Yuan, Zhiliang |
| author_facet | Wang, Xu-Jie Huang, Guoqi Li, Ming-Yang Wang, Yuan-Zhuo Liu, Li Wu, Bang Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Ji, Weijie Jiao, Rongzhen Yin, Hua-Lei Yuan, Zhiliang |
| contents | Resonance fluorescence of a two-level emitter displays persistently anti-bunching irrespective of the excitation intensity, but inherits the driving laser's linewidth under weak monochromatic excitation. These properties are commonly explained in terms of two disjoined pictures, i.e., the emitter's single photon saturation or passively scattering light. Here, we propose a unified model that treats all fluorescence photons as spontaneous emission, one at a time, and can explain simultaneously both the spectral and correlation properties of the emission. We theoretically derive the excitation power dependencies, measurable at the single-photon incidence level, of the first-order coherence of the whole resonance fluorescence and super-bunching of the spectrally filtered, followed by experimental confirmation on a semiconductor quantum dot micro-pillar device. Furthermore, our model explains peculiar coincidence bunching observed in phase-dependent two-photon interference experiments. Our work provides an intuitive understanding of coherent light-matter interaction and may stimulate new applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13743 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Coherence in resonance fluorescence Wang, Xu-Jie Huang, Guoqi Li, Ming-Yang Wang, Yuan-Zhuo Liu, Li Wu, Bang Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Ji, Weijie Jiao, Rongzhen Yin, Hua-Lei Yuan, Zhiliang Quantum Physics Mesoscale and Nanoscale Physics Optics Resonance fluorescence of a two-level emitter displays persistently anti-bunching irrespective of the excitation intensity, but inherits the driving laser's linewidth under weak monochromatic excitation. These properties are commonly explained in terms of two disjoined pictures, i.e., the emitter's single photon saturation or passively scattering light. Here, we propose a unified model that treats all fluorescence photons as spontaneous emission, one at a time, and can explain simultaneously both the spectral and correlation properties of the emission. We theoretically derive the excitation power dependencies, measurable at the single-photon incidence level, of the first-order coherence of the whole resonance fluorescence and super-bunching of the spectrally filtered, followed by experimental confirmation on a semiconductor quantum dot micro-pillar device. Furthermore, our model explains peculiar coincidence bunching observed in phase-dependent two-photon interference experiments. Our work provides an intuitive understanding of coherent light-matter interaction and may stimulate new applications. |
| title | Coherence in resonance fluorescence |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2312.13743 |