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Spinning the Light: The World's Smallest Optical Gyroscope

10-25-18

Professor Ali Hajimiri and colleagues have developed a new optical gyroscope that is 500 times smaller than the current state-of-the-art device, yet they can detect phase shifts that are 30 times smaller than those systems. Their device achieves this improved performance by using a new technique called "reciprocal sensitivity enhancement." In this case, "reciprocal" means that it affects both beams of the light inside the gyroscope in the same way. [Caltech story]

Tags: EE research highlights Ali Hajimiri

Illuminating New Possibilities

10-10-18

Alireza Marandi, Assistant Professor of Electrical Engineering, explores how nonlinear photonics, a field of optics, enables a broad range of previously less-explored opportunities for using lasers and light detectors for a variety of purposes, including molecular sensing and computing. One possible application of his work is in breath analysis. He describes, “ there's a lot of useful information about your health contained in your breath, but it is difficult to analyze because the concentrations are so low. To overcome that, you could analyze the spectra of exhaled breath using lasers, searching for the spectral "fingerprints," or signatures, that reveal the presence of those compounds.” [Interview with Professor Marandi]

Tags: EE research highlights Alireza Marandi

New Major and Minor in Information and Data Sciences

09-25-18

Starting in fall 2018, EAS will offer students a new undergraduate degree option in a field that is at the forefront of computer science: information and data sciences (IDS). Mathematics will form the backbone of the new option. Students in IDS will take core courses focusing on machine learning, information theory, probability, statistics, linear algebra, and signal processing. After that, they will have the opportunity to branch out with electives that cover applications of data sciences to science and engineering. Professor Adam Wierman hopes the creation of this new option will prepare both students and Caltech for the future. "It almost doesn't matter what you're interested in. If you want to make discoveries and be on the cutting edge of your field, you're going to need the skills to analyze and manipulate large collections of information," he says.  [Caltech story] [Degree option details]

Tags: CMS Adam Wierman teaching

President Rosenbaum Highlights Postdocs as "Unsung Heroes"

09-24-18

In a letter to the Caltech community during National Postdoc Appreciation Week, the Caltech President emphasizes the role this key group plays at the Institute. He stated, “Caltech's mission of world-leading research and education depends crucially on our postdoctoral scholars. Although their time at Caltech may be short, they quickly become vital parts of the Institute's intellectual fabric.” [President’s Letter] [EAS Postdoc Resource Page]

Tags: APhMS EE GALCIT MedE MCE CMS ESE Thomas Rosenbaum postdocs

The Possibilities are Mote and Remote

08-17-18

Professor Azita Emami’s work in high-speed data communications has led to a breakthrough that could spare millions of people the need to prick themselves with needles. As she engineers a more connected world, she also is working to make it a healthier one. Professor Emami doesn’t draw a line between the different endeavors. “Electronic systems for cell phones and computers are very, very advanced,” she explains. “So why not take the knowledge we have gained developing those technologies and find ways to apply it toward solutions in medicine?” [Breakthrough story]

Tags: EE research highlights MedE Azita Emami

Wireless Pressure-Sensing Eye Implant Could Help Prevent Blindness

06-28-18

Azita Emami, Andrew and Peggy Cherng Professor of Electrical Engineering and Medical Engineering and Executive Officer for Electrical Engineering, Yu-Chong Tai, Anna L. Rosen Professor of Electrical Engineering and Medical Engineering; Andrew and Peggy Cherng Medical Engineering Leadership Chair; Executive Officer for Medical Engineering, and colleagues have developed a new pressure-sensing implant for the eye that could help prevent one of the leading causes of blindness. The implant could help glaucoma patients monitor their condition by wirelessly sending data about the eye to the patient or medical professionals. Patients at risk for glaucoma are required to make regular visits to an ophthalmologist to have their intraocular pressure (eye pressure) checked. The disadvantage is that patients are only able to measure pressure while visiting their doctor. With a wireless implant, a patient has access to their eye pressure data at any time, and continuous monitoring will allow intervention sooner if needed. [Caltech story]

Tags: research highlights MedE Yu-Chong Tai Azita Emami

Ryan Monroe Wins Milton and Francis Clauser Doctoral Prize

06-18-18

Ryan Monroe, advised by Greg Hallinan is a winner of this year's Milton and Francis Clauser Doctoral Prize, for his thesis "Gigahertz Bandwidth and Nanosecond Timescales: New Frontiers in Radio Astronomy through Peak Performance Signal Processing." The Clauser Prize is awarded to students whose PhD thesis reflects "extraordinary standards of quality, innovative research, ingenuity, and especially the potential of opening new avenues of human thought and endeavor." 

Tags: EE honors Ryan Monroe

Behrooz Abiri Wins Charles Wilts Prize

06-14-18

Behrooz Abiri, advised by Ali Hajimiri is a winner of this year's Charles Wilts Prize, for his doctoral thesis "Silicon Integrated Arrays: From Microwave to IR." The Charles Wilts Prize is awarded every year to a graduate student in Electrical Engineering for outstanding independent research.

Tags: EE honors Ali Hajimiri Wilts Prize Behrooz Abiri

EE students Win $100K Qualcomm Innovation Fellowships

06-14-18

Graduate students Ehsan Abbasi and Fariborz Salehi, working with Professor Babak Hassibi, have won a 2018 Qualcomm Innovation Fellowship. They proposed a new algorithm for data recovery in Massive MIMO systems, which has a near optimal performance while being computationally efficient. Massive MIMO is the key enabler in the upcoming 5G data networks which promise considerably higher data rates in future generations of wireless networks. This year there were 174 submissions to Qualcomm for the fellowship and only 8 winning teams were chosen. Each winning team will be awarded a $100K fellowship and receive mentorship from Qualcomm engineers. [List of winners]

Tags: EE honors Babak Hassibi Ehsan Abbasi Fariborz Salehi

Erica Chen Receives 2018 Henry Ford II Scholar Award

06-08-18

Electrical engineering student Shuqing (Erica) Chen, advised by Professor Michelle Effros, is a recipient of the 2018 Henry Ford II Scholar Award. She is interested in information theory and communication theory and is working on analyzing lossless source coding in the finite blocklength regime with unknown numbers of transmitters. 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 in their discipline.

Tags: EE honors Henry Ford II Scholar Award Michelle Effros Shuqing (Erica) Chen