The photonic tensor core performs vector-matrix multiplications by utilizing the efficient interaction of light at different wavelengths with multistate photonic phase change memories. Credit: Mario Miscuglio Using photons to create more powerful and power-efficient processing units for more complex machine learning. Machine learning performed by neural networks is a popular […]

The arrows represent the electron spins pointing up from a kagome lattice. The chirality is represented by the counterclockwise circle of fire, which represents the propagating electrons/current on the edge of the magnet. The two cones demonstrate that the bulk of the magnet contains Dirac fermions (linear or conical dispersion […]

Researchers report that while magnesium and other multivalent metals show promise for high-density energy storage, but a number of obstacles remain. They suggest next steps in search for large-scale energy storage solution. Lithium-ion batteries are recognized for their high energy density in everything from mobile phones to laptop computers and […]

This graphic depicts a stylized rendering of the quantum photonic chip and its assembly process. The bottom half of the image shows a functioning quantum micro-chiplet (QMC), which emits single-photon pulses that are routed and manipulated on a photonic integrated circuit (PIC). The top half of the image shows how […]

(Click HERE for full view.) This illustrates how an experimental memory technology stores data by shifting the relative position of three atomically thin layers of metal, depicted as gold balls. The swirling colors reveal how a shift in the middle layer affects the motion of electrons in a way that […]

MIT engineers have designed a “brain-on-a-chip,” smaller than a piece of confetti, that is made from tens of thousands of artificial brain synapses known as memristors — silicon-based components that mimic the information-transmitting synapses in the human brain. The researchers borrowed from principles of metallurgy to fabricate each memristor from alloys […]

A phase-locking scheme for plasmonic lasers is developed in which traveling surface-waves longitudinally couple several metallic microcavities in a surface-emitting laser array. Multi-watt emission is demonstrated for single-mode terahertz lasers in which more photons are radiated from the laser array than those absorbed within the array as optical losses. Credit: […]

We’re approaching the limit of how small transistors can get. As a result, over the past decade researchers have been working to find other ways to improve performance so that the computer industry can continue to innovate. MIT CSAIL researchers say improving computing technology after Moore’s Law will require more efficient […]

Researchers developed a technique that uses a scanning tunneling microscope integrated with lasers and other optical components to trap appropriate molecules and measure the energy distribution of hot electrons in a thin gold film. Credit: Illustration by Enrique Sahagún Highly energetic, “hot” electrons have the potential to help solar panels […]

Gyroscopes have been indispensable tools for navigation and measurement for many decades. Early gyroscopes were not much different than spinning tops, but the technology has advanced so much over the years that the modern gyroscope no longer resembles a child’s toy. Today, there are two kinds in widespread use: optical […]