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Researchers Synthesize Organic Light-Harvesting Supramolecule Based on DNA

Organic molecules that capture photons and convert these into electricity have important applications for producing green energy. Light-harvesting complexes need two semiconductors, an electron donor and an acceptor. How well they work is measured by their quantum efficiency, the rate by which photons are converted into electron-hole pairs.

25 Feb 2021

A New Technique to Enhance Spin Hall Effect of Light with Near 100% Efficiency

A POSTECH-KAIST joint research team has successfully developed a technique to reach near-unity efficiency of SHEL by using an artificially-designed metasurface.

22 Feb 2021

Sloshing of Quantum Liquids Reveals Intriguing Superfluid Properties

The 'sloshing' of a quantum fluid comprised of light and matter reveals superfluid properties.

17 Feb 2021

Using Light to Detect Single Quantum Bit in a Dense Cloud

Researchers have found a way to use light and a single electron to communicate with a cloud of quantum bits and sense their behaviour, making it possible to detect a single quantum bit in a dense cloud.

16 Feb 2021

Multiplying Light Signals can Solve Challenging Computational Problems

An important class of challenging computational problems, with applications in graph theory, neural networks, artificial intelligence and error-correcting codes can be solved by multiplying light signals, according to researchers from the University of Cambridge and Skolkovo Institute of Science and Technology in Russia.

9 Feb 2021

Breakthrough Research Paves the Way to Production of Quantum Photonic Circuits

The modern world is powered by electrical circuitry on a "chip"--the semiconductor chip underpinning computers, cell phones, the internet, and other applications. In the year 2025, humans are expected to be creating 175 zettabytes (175trillion gigabytes) of new data. How can we ensure the security of sensitive data at such a high volume- And how can we address grand-challenge-like problems, from privacy and security to climate change, leveraging this data, especially given the limited capability of current computers-

8 Feb 2021

Researchers Design Advanced Long-Wavelength Infrared Photodetectors

Northwestern University researchers have developed a new approach to quantum device design that has produced the first gain-based long-wavelength infrared (LWIR) photodetector using band structure engineering based on a type-II superlattice material.

3 Feb 2021

Light-Induced Lattice Twisting can Photogenerate Giant Electric Current

Scientists at the U.S. Department of Energy's Ames Laboratory and collaborators at Brookhaven National Laboratory and the University of Alabama at Birmingham have discovered a new light-induced switch that twists the crystal lattice of the material, switching on a giant electron current that appears to be nearly dissipationless.

20 Jan 2021

New Chip-Based Photon Source is 100 Times More Efficient than Any Previous Device

Super-fast quantum computers and communication devices could revolutionize countless aspects of our lives -- but first, researchers need a fast, efficient source of the entangled pairs of photons such systems use to transmit and manipulate information.

18 Dec 2020

Researchers Find a Way to Create Ballistic Optical Materials

Electronics are increasingly being paired with optical systems, such as when accessing the internet on an electronically run computer through fiber optic cables.

15 Dec 2020