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About

S. Becerril is a leading astronomical instrumentation engineer whose work has been pivotal in enabling the next generation of massive spectroscopic surveys. Their primary research focuses on developing high-precision robotic fiber positioners and multi-object spectrographs for large ground-based telescopes. Becerril’s most significant contribution is the design and implementation of the 5,020 robotic fiber positioners for the Dark Energy Spectroscopic Instrument (DESI), a system that autonomously retargets optical fibers every 10–20 minutes with micron-level precision. This breakthrough, detailed in their 2022 paper with 175 citations, allows DESI to map over 35 million galaxies and quasars, directly probing the nature of dark energy. Earlier, Becerril was instrumental in the conceptual design of the BigBOSS experiment (80 citations), a Stage IV dark energy survey, and contributed to EMIR, the near-infrared multi-object spectrograph for the Gran Telescopio Canarias. Their work on compact 8-mm diameter fiber robots (19 citations) has set new standards for positioning accuracy in massive spectroscopy. Through these innovations, Becerril has helped transform how astronomers conduct large-scale cosmic surveys, making them faster, more precise, and more efficient.