Seminarios de Instrumentación
Beyond Lenses: Computational Optics empower Observational Astronomy
Resumen
Optics-based observational astronomy has long been a cornerstone in cosmic exploration. Computational optics offer promising solutions to persistent challenges such as aberrations, atmospheric turbulence, and low-throughput spectral acquisition etc. This talk introduces a light-field meta-imaging sensor with digital adaptive optics, achieving aberration-corrected imaging across a 1,100-arcsecond field of view on an 80-cm telescope. It also enables wide-field observation and prediction of atmospheric turbulence at 30 Hz. Next, a pico-resolved broadband snapshot spectroscopy is presented. It captures 4D shockwave propagation during a solar flare eruption using a 1-meter solar telescope, and acquires gigapixel hyperspectral images of galaxies 35 million light-years away in tens of seconds using a 2.16-meter telescope. Applications range from turbulence correction to solar videography and dark matter detection pointing toward a computationally empowered future for astronomical imaging.
Sobre la charla
Tsinghua University
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Sobre el conferenciante
Dr. Lu FANG is is a Professor in the Department of Electronic Engineering at Tsinghua University. Her research focuses on cross-disciplinary studies in computational optics and visual intelligence. Dr. Fang published over 100 peer-reviewed papers, including Science, Nature, Nature Photonics, Nature Machine Intelligence etc. She received the NSFC Distinguished Young Scholar Fund, The Xplorer Prize, the MIT TR35 Innovators (China) Award, ICBS Best Paper Award, and the Humboldt Research Fellowship for Experienced Researchers. Dr. Fang serves as an Associate Editor for Optica, and as the General Chair for IEEE MMSP 2025.