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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2605.12884 |
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| _version_ | 1866913120349323264 |
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| author | Wei, Qianyi Ni, Jielei Zhang, Yuquan Zhou, Zhangyu Zhang, Shuoshuo Tan, Zhiyong Pan, Jiahui Yuan, Xiaocong Min, Changjun |
| author_facet | Wei, Qianyi Ni, Jielei Zhang, Yuquan Zhou, Zhangyu Zhang, Shuoshuo Tan, Zhiyong Pan, Jiahui Yuan, Xiaocong Min, Changjun |
| contents | Ultrafast optical imaging has enabled direct observation of femtosecond-nanosecond dynamics, yet three-dimensional (3D) dynamic measurements at high numerical aperture (NA) remain hindered by the intrinsically shallow depth of field (DoF) of conventional microscopes. Here, we propose an ultrafast, wide-field pump-probe interferometric microscope on a telecentric platform that significantly extends the effective DoF to ~18 micrometer at a high NA of 0.9 while maintaining high spatial resolution (down to 235 nm) and temporal resolution (~170 fs). The system enables single-frame 3D topography reconstruction without axial scanning or multi-view acquisition. We demonstrate these capabilities by capturing axial material flow during laser-induced microsphere melting that remain unobservable with conventional narrow-DoF systems, and by tracking the azimuthal rotation of ablation lobes during axial propagation of temporal focused spatiotemporal optical vortex (TF-STOV) pulses, directly revealing the spatiotemporal evolution of STOV-matter interactions |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_12884 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Ultrafast wide-field 3D topography with extended depth of field Wei, Qianyi Ni, Jielei Zhang, Yuquan Zhou, Zhangyu Zhang, Shuoshuo Tan, Zhiyong Pan, Jiahui Yuan, Xiaocong Min, Changjun Optics Ultrafast optical imaging has enabled direct observation of femtosecond-nanosecond dynamics, yet three-dimensional (3D) dynamic measurements at high numerical aperture (NA) remain hindered by the intrinsically shallow depth of field (DoF) of conventional microscopes. Here, we propose an ultrafast, wide-field pump-probe interferometric microscope on a telecentric platform that significantly extends the effective DoF to ~18 micrometer at a high NA of 0.9 while maintaining high spatial resolution (down to 235 nm) and temporal resolution (~170 fs). The system enables single-frame 3D topography reconstruction without axial scanning or multi-view acquisition. We demonstrate these capabilities by capturing axial material flow during laser-induced microsphere melting that remain unobservable with conventional narrow-DoF systems, and by tracking the azimuthal rotation of ablation lobes during axial propagation of temporal focused spatiotemporal optical vortex (TF-STOV) pulses, directly revealing the spatiotemporal evolution of STOV-matter interactions |
| title | Ultrafast wide-field 3D topography with extended depth of field |
| topic | Optics |
| url | https://arxiv.org/abs/2605.12884 |