Research Bits: March 7


Optical signal processing with acoustic waves Researchers from Pohang University of Science & Technology (POSTECH) demonstrated an optical-wave signal that can be amplified or canceled using optically driven acoustic waves on a silicon chip. Optical signal processing using Brillouin scattering, in which acoustic waves scatter light, has been demonstrated in nanophotonic structures. But ... » read more

Research Bits: March 1


Large-scale phased array Researchers at Princeton University developed a large-scale high-frequency antenna array using thin-film materials. “To achieve these large dimensions, people have tried discrete integration of hundreds of little microchips. But that’s not practical — it’s not low-cost, it’s not reliable, it’s not scalable on a wireless systems level,” said senior stud... » read more

Research Bits: Feb. 22


Dense optical data storage Researchers from the University of Southampton developed a laser writing method for producing high-density nanostructures in silica glass, which could be used for long-term, dense data storage. “Individuals and organizations are generating ever-larger datasets, creating the desperate need for more efficient forms of data storage with a high capacity, low energy ... » read more

Power/Performance Bits: Feb. 15


3D printed piezoelectrics Researchers at University of Notre Dame and Purdue University developed a hybrid 3D printer that combines multi-material aerosol jet printing and extrusion printing, integrating both functional and structural materials into a single printing platform. They used it to create an all-printed piezoelectric wearable device. The stretchable piezoelectric sensors conform ... » read more

Power/Performance Bits: Feb. 7


Stopping interference in integrated photonics Researchers at EPFL and Purdue University combined integrated photonics and MEMS to develop an electrically driven optical isolator-on-a-chip that transmits light in only one direction. Optical isolators are useful to prevent reflected light from other components compromising or interfering with an on-chip laser’s performance. They are often c... » read more

Power/Performance Bits: Feb. 1


Seaweed-inspired energy harvesting Researchers from Dalian Maritime University, Georgia Institute of Technology, and Sun Yat-sen University developed flexible power generators that mimic the way seaweed sways to efficiently convert surface and underwater waves into electricity to power marine-based devices. Networks of sensors are spread across coastal zones, collecting information on curre... » read more

Power/Performance Bits: Jan. 25


Nanoscale 3D optics Researchers at Rice University and University of Houston are using 3D printing to build nanostructures of silica for micro-scale electronic, mechanical, and photonic devices. “It’s very tough to make complicated, three-dimensional geometries with traditional photolithography techniques,” said Jun Lou, a professor of materials science and nanoengineering at Rice. �... » read more

Power/Performance Bits: Jan. 18


3D printed custom wearables Researchers from the University of Arizona created a 3D printed wearable that can operate continuously through wireless power to track body temperature and muscle deformation during exercise. Based on 3D body scans of the wearer, the medical-grade 'biosymbiotic device' can be custom printed to conform to a user's skin without the need for adhesives, which can irr... » read more

Power/Performance Bits: Jan. 10


Muscle-tracking clothing Researchers from the University of Utah and Gyeongsang National University developed a low-cost bioelectrical sensor that can be integrated into clothing. The sensor measures electromyography (EMG) signals that are generated in muscles when they contract. EMG signals are useful for studying muscle fatigue and recovery and could potentially be used to inform diagnosi... » read more

Power/Performance Bits: Jan. 3


Optical device integration Researchers from the University of Strathclyde, University of Glasgow, and the Australian National University propose a way to place multiple micron-scale optical devices made from different materials close together on a single silicon chip. “The development of electronics that are based on silicon transistors has enabled increasingly more powerful and flexible ... » read more

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