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Lican Wu on Muck Rack

Lican Wu

As seen in: Optica
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Articles

Enhancing the field-of-view of spectral-scanning FMCW LiDAR by multipass configuration with an echelle grating

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By Lican Wu, Qingyang Zhu, Yi Hao, Zihan Zang
| Optica Verified
We present a spectral-scanning frequency-modulated continuous wave (FMCW) 3D imaging system capable of producing high-resolution depth maps with an extended field of view (FOV). By employing a multipass configuration with an echelle grating, the system achieves an FOV of 5.5° along the grating axis. The resulting depth maps have a resolution of 70 × 40 pixels, with a depth resolution of 5.1 mm.
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Auto-focusing and self-healing of symmetric odd-Pearcey Gauss beams

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By Chuangjie Xu, Dongmei Deng, Lican Wu, Yehui Wu
| osapublishing.org
Abstract In this study, a new, to the best of our knowledge, form of odd-Pearcey Gauss beams with peculiar characteristics is presented. Compared with the Pearcey beam, the odd-Pearcey Gauss beam is symmetrical about the origin. At the initial stages, the odd-Pearcey Gauss beam propagates with a main central lobe and some residual spots that autofocus to the center, and then splits into two off-axis parabolic lobes after the autofocus finishes.
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