News & Events

Headlines

Researchers Help Generate First Image of Black Hole at the Center of Our Galaxy

05-12-22

A multi-institution collaboration that includes a Caltech-led imaging team has generated the first image of the supermassive black hole at the center of the Milky Way galaxy. This result provides conclusive evidence that the body, known as Sagittarius A* (Sgr A*, pronounced "sadge-ay-star"), is indeed a black hole and yields valuable clues about the workings of such massive objects, which are thought to reside at the center of most galaxies. "We not only recovered an image of Sgr A*, but also characterized the uncertainty of features in the image," says He Sun. "This analysis helped the team deliver scientific results with some guarantees." [Caltech story]

Tags: EE research highlights CMS Katie Bouman He Sun Junhan Kim Aviad Levis

Nanofabrication Courses Let Caltech Undergraduates Get Hands-on at the Smallest Scales

05-10-22

Engineers at companies like Intel who design and build chipsets and microprocessors must manipulate components at impossibly small scales. Axel Scherer, Bernard Neches Professor of Electrical Engineering, Applied Physics and Physics; Merkin Institute Professor, says the current state of the art involves working at the scale of 7 to 10 nanometers (or billionths of a meter). In five years, he says, that figure will likely be down to 3 nanometers or smaller—and students who take his new course, Nanofabrication Techniques, will be ready for this challenge. "The students are going to design the next generation of devices," Scherer says. [Caltech story]

Tags: APhMS EE research highlights MedE Axel Scherer Changsoon Choi Paromita Mitchell

Rapid Adaptation of Deep Learning Teaches Drones to Survive Any Weather

05-05-22

To be truly useful, drones—that is, autonomous flying vehicles—will need to learn to navigate real-world weather and wind conditions. A team of engineers from Caltech has developed Neural-Fly, a deep-learning method that can help drones cope with new and unknown wind conditions in real time just by updating a few key parameters. [Caltech story]

Tags: research highlights GALCIT CMS Yisong Yue Soon-Jo Chung Animashree Anandkumar Xichen Shi Guanya Shi Michael O'Connell Kamyar Azizzadenesheli

Pioneering New Frontiers in Topological Physics

04-28-22

A team of engineers led by Alireza Marandi, Assistant Professor of Electrical Engineering and Applied Physics, recently opened a new frontier in topological physics, which is the field that seeks to understand the topological properties that arise in coupled systems based on how they are organized and coupled. [Caltech story]

Tags: APhMS EE research highlights Alireza Marandi James Williams Midya Parto

A Science Journey with Fernando Villafuerte

04-26-22

As part of the Science Journeys lecture series—designed to inspire scientific curiosity, especially among students in eighth grade and higher—graduate student Fernando Villafuerte discussed his path to Caltech and his research on batteries, including their role in sustainability solutions. Villafuerte works in the lab of Julia R. Greer, Ruben F. and Donna Mettler Professor of Materials Science, Mechanics and Medical Engineering; and Fletcher Jones Foundation Director of the Kavli Nanoscience Institute. His research focuses on a novel material known as a solid polymer electrolyte, which could potentially be used to create batteries that can store more energy than currently possible. [Caltech story]

Tags: APhMS research highlights MedE MCE Julia Greer Fernando Villafuerte

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]

Tags: EE research highlights CMS Julia Greer Adam Wierman Steven Low Kimberly See

Saehui Hwang Receives Thomas J. Watson Fellowship

04-12-22

Saehui Hwang, a senior in electrical engineering, has been selected to receive a Thomas J. Watson Fellowship, a grant that offers graduating seniors the opportunity to pursue academic scholarship abroad. Hwang is one of just 42 students to receive the fellowship this year. The Thomas J. Wat­son Fel­low­ship is a one-year grant for pur­pose­ful, inde­pen­dent explo­ration out­side the Unit­ed States, award­ed to grad­u­at­ing seniors nom­i­nat­ed by one of 41 part­ner insti­tu­tions. Hwang will spend a year abroad working on a series of projects related to the design of wearable devices. "Ultimately, my career goal is to be an engineer who designs solutions with global impact," says Hwang. [Caltech story]

Tags: EE honors Saehui Hwang

Student-Led Lunar Architecture Team Named Finalist in NASA Competition for Second Consecutive Year

04-12-22

Caused by collisions from asteroids, comets, and other astronomical objects, lunar craters give our moon its characteristic pockmarked façade. These craters hold the materials necessary for building sustained human settlements on the moon. Accessing the materials inside lunar craters is no easy task. NASA seeks new ways of getting around the moon that do not rely on wheels. The agency's Breakthrough, Innovative, and Game-changing (BIG) Idea Challenge asks university teams to go beyond wheeled rovers and create new solutions to the problem of traversing lunar craters. A team of more than 30 Caltech undergraduates in the Division of Engineering and Applied Science is among seven 2022 BIG Idea finalists. [Caltech story]

Tags: GALCIT MCE Harry Atwater CMS Soon-Jo Chung Brit Wylie Luis Pabon Rithvik Musuku Kaila Coimbra Polina Verkhovodova Tyler Colenbrander Lucas Pabarcius Calle Junker Sravani Boggaram Matticus Brown Sean Chang Bobby Daigle Nico Jimenez-Lozano Alec Laprevotte Joshua Lee Moya Ly Amrita Mayavaram Robert Menezes Nathan Ng Dilichi Nwankwo Jedi Alindogan Diego Attra Sulekha Kishore Aramis Mendoza Winter Pearson Jules Penot Kemal Pulungan Purvi Sehgal Parul Singh Aiden Swann Malcolm Tisdale Tomas Wexler Brooklyn Williams Benjamin Zeng Isabella Zuniga

A New Soliton Offers a Path Toward Compact Molecular Sensing

04-11-22

Scientists know that molecules in our exhaled breath can reveal a vast amount of medical information; for example, sensors to precisely measure minute changes in the concentrations of different vapors in breath may one day replace the standard blood test.” However, no technology is yet available to access this data from exhaled breath in a timely, affordable way. A new process for generating self-reinforcing wave pulses, also known as solitons, may pave the way toward bringing optical molecular sensing out of the lab and into medical devices with a compact footprint. 

More »

Tags: EE Alireza Marandi Rajveer Nehra Saman Jahani Luis Ledezma Arkadev Roy

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]

Tags: APhMS EE EAS history alumni Roy Gould