Yuan Yang, assistant professor of materials science and engineering, has developed a new method that could lead to lithium batteries that are safer, have longer battery life, and are bendable, providing new possibilities such as flexible smartphones. His new technique uses ice-templating to control the structure of the solid electrolyte for lithium batteries that are used in portable electronics, electric vehicles, and grid-level energy storage. The study is published online April 24 in Nano Letters.
A team of Columbia Engineering researchers, led by Prof. Nanfang Yu, has invented a method to control light propagating in confined pathways, or waveguides, with high efficiency by using nano-antennas. To demonstrate this technique, they built photonic integrated devices that not only had record-small footprints but were also able to maintain optimal performance over an unprecedented broad wavelength range.
This workshop, organized by Shi Jin (UW-Madison), Jianfeng Lu (Duke), and Michael Weinstein (Columbia University), will focus on recent developments in this area at the interface of mathematics and fundamental and applied physics. The workshop is aimed at the broad group of researchers, with a view toward promoting interactions between the communities of mathematicians, physicists, and engineers.
Risk to property from thunderstorms is as high as from hurricanes, according to research published by Willis Re and Prof. Michael Tippett. The report, Managing Severe Thunderstorm Risk, was written to increase understanding of the impact of El Niño-Southern Oscillation (ENSO) on tornado and hail frequencies, and to introduce the concept of ENSO-conditioned event rates. Other contributors to the report were Chiara Lepore of LDEO and Adam Sobel.