EECS Assoc. Prof. Boubacar Kanté, his graduate 学生们 Liyi Hsu, Jeongho Ha and Jun-Hee Park, postdoctoral 研究er Abdoulaye Ndao, and Prof. Connie Chang-Hasnain, have demonstrated a revolutionary, ultrathin and compact, flat optical lens that spans wavelengths from the visible to the infrared with record-breaking efficiencies. Their paper, “Octave bandwidth photonic fishnet-achromatic-metalens,” published in Nature Communications, is the first time a photonic system with the entire rainbow has been proposed and demonstrated with efficiencies larger than 70% in the visible-infrared region of the spectrum. Attempts to make traditional lenses flatter and thinner, so that they can be deployed in increasingly smaller applications, have been hampered by the way that lens curvature and thickness are used to direct light. The Fishnet-Achromatic-Metalens (FAM) utilizes a complex “fishnet” of tiny, connected waveguides with a gradient in dimensions, which focuses light on a single point on the other side of the lens, regardless of the incident wavelength. As the world’s thinnest, most efficient, and broadest band, flat lens, its use in applications like solar energy, medical imaging, and virtual reality, is just the beginning. As Kanté explains, “We have overcome what was regarded as a fundamental roadblock.” One idea for a possible implementation would be to integrate the miniature lens into microrobots being developed at the Berkeley Sensor & Actuator Center (BSAC).
Incoming CS graduate student Meena Jagadeesan has won a 2020 Paul & Daisy Soros Fellowship for New Americans. The fellowship program 荣誉 the contributions of immigrants and children of immigrants to the United States by investing in the 教育 of a select group of new Americans who are "poised to make significant contributions to US society, culture or their academic field." Jagadeesan, whose parents emigrated from India, is a senior in a joint B.A./M.A. program at Harvard University where she is studying algorithmic questions, especially those arising in machine learning and economics. She has won a CRA Outstanding Undergraduate 研究er award and one of her papers, which involved the study of a dimensionality reduction scheme, was selected as an oral presentation at the Conference on Neural Information Processing Systems (NeurIPS). Each Fellow will receive up to $90K in financial support over two years.