Beaming Clean Energy From Space
10-26-22
Once considered science fiction, technology capable of collecting solar power in space and beaming it to Earth to provide a global supply of clean and affordable energy is moving closer to reality. Through the Space-based Solar Power Project (SSPP), a team of Caltech researchers is working to deploy a constellation of modular spacecraft that collect sunlight, transform it into electricity, then wirelessly transmit that electricity wherever it is needed—including to places that currently have no access to reliable power. "This is an extraordinary and unprecedented project," says Harry Atwater, Otis Booth Leadership Chair, Division of Engineering and Applied Science; Howard Hughes Professor of Applied Physics and Materials Science; Director, Liquid Sunlight Alliance. "It exemplifies the boldness and ambition needed to address one of the most significant challenges of our time, providing clean and affordable energy to the world." [Caltech story]
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Harry Atwater
Ali Hajimiri
Sergio Pellegrino
New Photonic Chip "Squeezes" More out of Light
09-15-22
Electronic computing and communications have come a very long way since the days of radio telegraphy and vacuum tubes, with consumer devices now containing levels of processing power and memory that would be unimaginable just a few decades ago. "The quality of the quantum states we have achieved surpasses the requirements for quantum information processing, which used to be the territory of bulky experimental setups," says Alireza Marandi, Assistant Professor of Electrical Engineering and Applied Physics. [Caltech story]
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Alireza Marandi
The Grid Gets Smart
04-25-22
Adaptive electric vehicle chargers and advanced battery designs are some of the ways Caltech researchers are building a more sustainable electric grid. Steven Low, Frank J. Gilloon Professor of Computing and Mathematical Sciences and Electrical Engineering, invented the Adaptive Charging Network (ACN). But Low and others warn that this grid is unprepared for the challenges of the 21st century. “The current grid will very soon hit a wall where, when we add renewable energy, it sits unused because the demand isn’t there at a time when the solar is running,” says Adam Wierman, Professor of Computing and Mathematical Sciences; Director, Information Science and Technology. That is why Caltech researchers are working on ways to break down that barrier to help empower an energy transformation. Julia R. Greer, Ruben F. and Donna Mettler Professor of Materials Science, Mechanics and Medical Engineering; Fletcher Jones Foundation Director of the Kavli Nanoscience Institute, is pushing the limits of the batteries themselves. [Caltech story]
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Julia Greer
Adam Wierman
Steven Low
Kimberly See
EAS Remembers Roy W. Gould
03-01-22
Roy W. Gould, Simon Ramo Professor of Engineering, Emeritus, passed away on February 19, 2022. He was 94 years old. Gould earned his bachelor's degree from Caltech in 1949, a master's from Stanford University in 1950, and a doctorate from Caltech in 1956. After leaving Stanford, he worked as an engineer on missile guidance and control at JPL, which Caltech manages for NASA, and then at Hughes Aircraft. He joined Caltech's faculty in 1955. Gould started as an Assistant Professor of Electrical Engineering, became Associate Professor of Electrical Engineering in 1958, Associate Professor of Electrical Engineering and Physics in 1960, and Professor in 1962. He was named Professor of Applied Physics in 1974 and became Ramo Professor of Engineering in 1980. He served as Executive Officer of Applied Physics from 1973–79 and Chair of the Division of Engineering and Applied Science from 1979–85. Gould's research focused on plasma physics and thermonuclear fusion. During his long career, Gould earned numerous awards and recognitions. [Caltech story]
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Roy Gould
