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About

Hu Zou is a leading instrumentalist and cosmologist at the forefront of dark energy research, best known for his pivotal contributions to the Dark Energy Spectroscopic Instrument (DESI). His primary research areas encompass precision astronomical instrumentation, large-scale structure cosmology, and the measurement of baryon acoustic oscillations (BAOs). Zou played a central role in the development and calibration of DESI’s revolutionary robotic focal plane system, a complex array of 5,020 fiber positioners that autonomously retarget celestial objects every 10–20 minutes with micron-level precision. This technological feat, detailed in a highly cited 2022 paper (175 citations), enables DESI to map over 40 million galaxies and quasars. Zou’s impact extends to first science results, including the first detection of the BAO signal from early DESI data (2023, 37 citations), a milestone in constraining cosmic expansion. He also led the astrometric calibration of the entire focal plane, ensuring the survey’s unprecedented accuracy. Through his instrumental ingenuity and cosmological analyses, Zou is helping build the largest 3D map of the universe, driving our understanding of dark energy.