Linewidth narrowing in self-injection-locked, on-chip lasers

On-chip laser diodes based on quantum well (QW) and quantum dot (QD) semiconductor materials have become the primary technology for several applications due to their excellent characteristics, including high power efficiency, ...

Climate change-resilient infrastructure

When President Joe Biden addresses a joint session of Congress tonight a common thread will likely run through much of his narrative: resilience. Beyond touting his administration's accomplishments, Biden is expected to use ...

Lead-free bearings for greener large-bore engines

Lead-free bearings are one of the missing pieces in the technological shift that will eventually allow large-bore engine manufacturers to reduce their emissions, while not compromising on reliability and lifespan. Research ...

Flexible engineering design for infrastructure projects

For nearly 50 years, Richard de Neufville has been working on ways to plan, analyze and design complex engineering systems. A civil engineer by background, de Neufville's latest research focuses on a major paradigm shift ...

How to grip an asteroid

For someone like Edward Fouad, a junior at Caltech who has always been interested in robotics and mechanical engineering, it was an ideal project: help develop robotic technology that could one day fly on a NASA mission to ...

Micro cameras flex their way into the future of imaging

Imagine sticking a thin sheet of microscopic cameras to the surface of a car to provide a rear-view image, or wrapping that sheet around a pole to provide 360-degree surveillance of an intersection under construction.

NASA high school STEM challenge announces winning team

The NASA RealWorld-InWorld Engineering Design Challenge, an integrated science, technology, engineering and mathematics program focused on NASA's forthcoming James Webb Space Telescope, has named the 2012-2013 first place ...

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