| Title | Real-time wide-field spectral-scanning FMCW coherent 3D imaging and velocimetry |
| Publication Type | Journal Article |
| Year of Publication | 2022 |
| Authors | Zhang, J, Qian, R, Zhou, KC, Viehland, C, Draelos, M, Dhalla, AH, Izatt, JA |
| Journal | Optics Letters |
| Volume | 47 |
| Issue | 16 |
| Start Page | 4064 |
| Pagination | 4064 - 4067 |
| Date Published | 08/2022 |
| Abstract | We present a real-time spectral-scanning frequencymodulated continuous wave (FMCW) 3D imaging and velocimetry system that can produce 3D depth maps at 33 Hz, with 48°×68° field of view (FOV) and 32.8-cm depth range. Each depth map consists of 507×500 pixels, with 0.095°×0.14° angular resolution and 2.82-mm depth resolution. The system employs a grating for beam steering and a telescope for angular FOV magnification. Quantitative depth, reflectivity, and axial velocity measurements of a static 3D printed depth variation target and amoving robotic arm are demonstrated. |
| DOI | 10.1364/OL.463965 |
| Short Title | Optics Letters |