Category Technology/Electronics

Nanoimprinting Technique for Humidity-Responsive Holographic Images

A magical display that projects holographic images that change when in contact with water has been developed. This new technology increases the possibility of commercialization as it can infinitely imprint holographic images.

A POSTECH research team led by Professor Junsuk Rho (Department of Mechanical Engineering and Department of Chemical Engineering) and Ph.D. candidates Byoungsu Ko, Younghwan Yang, Jaekyung Kim, and Dr. Trevon Badloe has developed a technology for a humidity-responsive display that changes in brightness and color depending on the degree of humidity.

The team first successfully realized holographic images with tunable brightness using polyvinyl alcohol (PVA)...

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At the edge of Graphene-based Electronics

A tiny graphene device on a silicon carbide substrate chip. The device rests on a person's fingertip. Credit: Jess Hunt-Ralston, Georgia Tech 

Researchers developed a new graphene-based nanoelectronics platform compatible with conventional microelectronics manufacturing, paving the way for a successor to silicon.Claire Berger, physics professor at Georgia Tech, holds the team’s graphene device grown on a silicon carbide substrate chip. Credit: Jess Hunt-Ralston, Georgia Tech 

A pressing quest in the field of nanoelectronics is the search for a material that could replace silicon. Graphene has seemed promising for decades. But its potential faltered along the way, due to damaging processing methods and the lack of a new electronics paradigm to embrace it. With silicon nearly maxed out in its ability to accommodate faster computing, the next big nanoelectronics platform is needed now more than ever.

Walter de Heer, Regen...

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Researchers develop All-Optical Approach to Pumping Chip-Based Nanolasers

Caption: Researchers have developed a new all-optical method for driving multiple high density nanolaser arrays using light traveling down a single optical fiber. The optical driver creates programmable patterns of light via interference.
Image Credit: Myung-Ki Kim, Korea University

New technology could aid in meeting the ever-growing need to move more data faster. Researchers have developed a new all-optical method for driving multiple highly dense nanolaser arrays. The approach could enable chip-based optical communication links that process and move data faster than today’s electronic-based devices.

“The development of optical interconnects equipped with high-density nanolasers would improve information processing in the data centers that move information across the internet,” sai...

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Quadruped Robot with Magnetized Feet can Climb on Metal Buildings and Structures

Quadruped robot with magnetized feet can climb on metal buildings and structures
MARVEL description. (A) MARVEL clinging to a steel storage tank. (B) MARVEL electronic architecture. (C) Mechanical and electronic components of MARVEL. Credit: Science Robotics (2022). DOI: 10.1126/scirobotics.add1017

A trio of researchers at Korea Advanced Institute of Science and Technology, working with a colleague at the University of Illinois at Urbana-Champaign, has designed and built a working quadruped robot with magnetized feet that can climb on the walls and ceilings of metal buildings and structures.

In their paper published in in the journal Science Robotics, Seungwoo Hong, Yong Um, Hae-Won Park and Jaejun Park describe their robot and how well it worked when tested under real world conditions.

As the technology used to build robots improves, engineers find more ways...

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