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A Pathway to Longer-Lasting Lithium Batteries

08-06-20

The energy density of batteries have been a major challenge for consumer electronics, electric vehicles, and renewable energy sources. 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, has made a discovery that could lead to lithium-ion batteries that are both safer and more powerful. Findings provide guidance for how lithium-ion batteries, one of the most common kinds of rechargeable batteries, can safely hold up to 50 percent more energy. "Every power-requiring application would benefit from batteries with lithium instead of graphite anodes because they can power so much more," says Greer. "Lithium is lightweight, it doesn't occupy much space, and it's tremendously energy dense." [Caltech story]

Tags: APhMS research highlights MCE Julia Greer KNI

Alexander Popov Receives 2020 Henry Ford II Scholar Award

06-30-20

Computer science student Alexander Popov, advised by Yaser Abu-Mostafa, Professor of Electrical Engineering and Computer Science, is a recipient of the 2020 Henry Ford II Scholar Award. Some of the most interesting classes that Alexander has taken at Caltech have been team-based interdisciplinary project classes. These classes have allowed him to gain experience working in teams with varying specialties, while designing and implementing interesting projects (for example, a robot arm designed to recognize users’ hand gestures and assist them in executing complicated drawing-related tasks, such as exactly copying an area of a whiteboard). This summer he will be working as a software engineer at Facebook. After graduation, he aims to work at a company where he is able to further develop his knowledge of machine learning and the application thereof. The Henry Ford II Scholar Award is funded under an endowment provided by the Ford Motor Company Fund. The award is made annually to engineering students with the best academic record at the end of the third year of undergraduate study.

Tags: EE honors CMS Henry Ford II Scholar Award Yaser Abu-Mostafa Alexander Popov

Katie Bouman Receives Okawa Research Grant

06-26-20

Katie Bouman, Assistant Professor of Computing and Mathematical Sciences and Electrical Engineering; Rosenberg Scholar, is a recipient of a 2020 Okawa Foundation Research Grant for her work on "AI Meets Real-World Science: Optimal Sensing for Next-Generation Imaging." This is a prize awarded to faculty involved in the fields of computer science, information systems and/or telecommunications, and other scientific fields inspired by these approaches. [Past Recipients]

Tags: EE honors CMS Katie Bouman

Mohith Manohara Receives 2020 Henry Ford II Scholar Award

06-12-20

Electrical engineering student Mohith Manohara is a recipient of the 2020 Henry Ford II Scholar Award. The award is made annually to engineering students with the best academic record at the end of the third year of undergraduate study. Mohith is currently a junior studying Electrical Engineering at Caltech. He does research on phased arrays with Ali Hajimiri, Bren Professor of Electrical Engineering and Medical Engineering; Co-Director, Space-Based Solar Power Project, and leads the electronics on the Caltech Robotics Team. This summer he will be doing an internship at a startup called Epirus, and afterwards he plans to pursue a PhD. The Henry Ford II Scholar Award is funded under an endowment provided by the Ford Motor Company Fund.

Tags: EE honors MedE Henry Ford II Scholar Award Ali Hajimiri KNI Mohith Manohara

IRCA Best Paper Awards

06-08-20

Two teams of Caltech researchers have won three International Conference on Robotics and Automation (ICRA) Best Paper Awards in multiple categories along with the overall best paper award. The ICRA is the largest and most prestigious robotics conference of the year. Awards are given on the basis of technical merit, originality, potential impact on the field, clarity of the written paper, and quality of the presentation. Maegan Tucker, Ellen Novoseller, Claudia Kann, Yanan Sui, Yisong YueJoel Burdick, and Aaron Ames, have won the ICRA Best Conference Paper Award and the ICRA Best Paper Award on Human-Robot Interaction (HRI) for their paper entitled "Preference-Based Learning for Exoskeleton Gait Optimization." Amanda Bouman, Paul Nadan, Matthew Anderson, Daniel Pastor, Jacob Izraelevitz, Joel Burdick, and Brett Kennedy, have won the ICRA Best Paper Award on Unmanned Aerial Vehicles for their paper entitled "Design and Autonomous Stabilization of a Ballistically Launched Multirotor." [Virtual Award Ceremony]

Tags: EE honors MedE MCE CMS Joel Burdick IST Yisong Yue CNS Aaron Ames Maegan Tucker Ellen Novoseller Claudia Kann Yanan Sui Amanda Bouman Paul Nadan Matthew Anderson Daniel Pastor Jacob Izraelevitz Brett Kennedy

Lei Li Wins Charles Wilts Prize

06-02-20

Lei Li advised by Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, is a winner of this year's Charles Wilts Prize, for his doctoral thesis "Multi-contrast Photoacoustic Computed Tomography." The Charles Wilts Prize is awarded every year to a graduate student in Electrical Engineering for outstanding independent research.

Tags: EE honors MedE Wilts Prize KNI Lihong Wang Lei Li

Seeing Through Opaque Media

05-12-20

Changhuei Yang, Thomas G. Myers Professor of Electrical Engineering, Bioengineering, and Medical Engineering, has developed a technique that combines fluorescence and ultrasound to peer through opaque media, such as biological tissue. "We hope that one day this method can be deployed to extend the operating depth of fluorescence microscopy and help image fluorescent labeled cells deep inside living animals," says Yang. [Caltech story]

Tags: EE research highlights Changhuei Yang MedE KNI

New Ultrafast Camera Takes 70 Trillion Pictures Per Second

05-04-20

A new camera developed by Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, is capable of taking as many as 70 trillion frames per second. The camera technology, which Wang calls compressed ultrafast spectral photography (CUSP), combines a laser that emits extremely short pulses of laser light that last only one quadrillionth of a second (one femtosecond) with optics and a specialized type of camera. The technology could open up new avenues of research in fields that include fundamental physics, next-generation semiconductor miniaturization, and the life sciences. "We envision applications in a rich variety of extremely fast phenomena, such as ultrashort light propagation, wave propagation, nuclear fusion, photon transport in clouds and biological tissues, and fluorescent decay of biomolecules, among other things," Wang says. [Caltech story]

Tags: EE research highlights MedE KNI Lihong Wang

Tiny Optical Cavity Could Make Quantum Networks Possible

03-31-20

Andrei Faraon, Professor of Applied Physics and Electrical Engineering, and team have shown that atoms in optical cavities—tiny boxes for light—could be foundational to the creation of a quantum internet. They identified a rare-earth ytterbium ion in the center of a beam. The ytterbium ions are able to store information in their spin for 30 milliseconds. In this time, light could transmit information to travel across the continental United States. "It's a rare-earth ion that absorbs and emits photons in exactly the way we'd need to create a quantum network," says Faraon. "This could form the backbone technology for the quantum internet." [Caltech story]

Tags: APhMS EE research highlights KNI Andrei Faraon Andrei Ruskuc Jake Rochman John Bartholomew Yan Qi Huan

Best Student Paper Award at IEEE CICC Conference´╗┐

03-25-20

Professor Azita Emami's group in collaboration with Professor Wei Gao’s group has won the best student paper award at the 2020 IEEE Custom Integrated Circuits Conference. The title of the paper is "A Fully-Integrated Biofuel-Cell-Based Energy Harvester with 86% Peak Efficiency and 0.25V Minimum Input Voltage Using Source-Adaptive MPPT." The IEEE CICC is a premier conference devoted to integrated circuit development. The conference program is a blend of oral presentations, exhibits, panels and forums. The conference sessions present original first published technical work and innovative circuit techniques that tackle practical problems. [Read the paper] [Past recipients]

Tags: EE honors MedE Kuan-Chang Chen Azita Emami Wei Gao Arian Hashemi You Yu Abhinav Agarwal William Kuo Minwo Wang Gudrun Hoskuldsdottir