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Delay-line model of a thin broadband metalens.

Exploring the theoretical limits of metalenses

A new paper published in Optica, “Focusing on bandwidth: achromatic metalens limits,” details the finding of some fundamental limits on so-called “metalenses,” ultra-thin flat lenses which have shown great promise in their ability to function as ultracompact optical systems for focusing and imaging. Federico Presutti, Ph.D. student in applied engineering and physics, and Francesco Monticone, assistant professor in electrical and computer engineering are the paper’s authors. “Think of any optical system with lenses for focusing and imaging: a camera, microscope, a lens antenna,” Monticone said... Read more

Zhiting Tian and Guy Hoffman

Zhiting Tian and Guy Hoffman promoted to Associate Professor with Tenure

Zhiting Tian and Guy Hoffman have been approved for promotion to Associate Professor with Tenure by the Cornell Board of Trustees. Tian's work on the design and discovery of new materials and devices through a fundamental understanding of nanoscale thermal transport and energy conversion processes is widely recognized and well regarded for both its computational and experimental aspects. Contributions to thermoelectric devices, thermal rectification in organic materials, and inelastic x-ray scattering techniques are among those for which she is well known. Hoffman's tenure is well deserved... Read more

Alan Merten, former Johnson dean, dies at 78

Alan G. Merten, who served as the Anne and Elmer Lindseth Dean of the Samuel Curtis Johnson Graduate School of Management from 1989 to 1996, died May 21 in Naples, Florida, of complications from Parkinson’s disease. He was 78. Read more

Engineering students’ book celebrates 27 inspiring alumnae

Three seniors and leaders of the Society of Women Engineers’ student section at Cornell have co-authored “Wall of Wonder: Cornell Women Leading the Way in Science, Technology and Engineering,” a book that spotlights 27 alumnae and is set to publish in June. Read more