Pink diamonds create world’s smallest radio receiver

Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences have made the world’s smallest radio receiver – built out of an assembly of atomic-scale defects in pink diamonds. This tiny radio – whose building blocks are the size of two atoms – can withstand extremely harsh environments and is biocompatible, meaning it could work anywhere from a probe on Venus to a pacemaker in a human…

December 16, 2016

First all solid-state wavelength-dependent bipolar photodetectors

September 1, 2016

The first all solid-state wavelength-dependent bipolar photodetectors with fast response times and tunable switching wavelengths have been described by researchers at Toyota Central R&D Labs. The findings are reported in Applied Physics Express. “Optoelectronic sensors that can switch their photocurrent direction based on the wavelength of incident light are an important building block in novel optical logic gates, color sensors, and photocatalysts,” explain Takashi Ikuno and Masaki Hasegawa at the Toyota…


Optical communication now graphene-based

Credit: Dr Ilya Goykhman, University of Cambridge, Cambridge Graphene Centre
July 8, 2016

Researchers from the Graphene Flagshi, as an important step towards graphene integration in silicon photonics, have published a paper which shows how graphene can provide a simple solution for silicon photodetection in the telecommunication wavelengths. Published in Nano Letters, this research is a collaboration between the University of Cambridge (UK), The Hebrew University (Israel) and John Hopkins University (USA). The mission of the Graphene Flagship is to translate graphene out…


Researchers use silver to make light shine brighter

June 6, 2016

Florescent lighting contains toxic and expensive phosphors. Materials scientists at Queen Mary University of London (QMUL) have figured out a way to eliminate these components using silver. The international group of scientists. who published their study in the journal Nature Materials, modified a mineral called zeolite, commonly found in washing powder, to incorporate tiny clusters of silver atoms. At this very small scale, at less than 10 atoms, the silver…


Team creates highly flexible OLEDs with graphene-based electrodes

June 3, 2016

Now that a team of researchers from the Korean Advanced Institute of Science and Technology has used a graphene-based transparent electrode to create flexible organic light-emitting diodes (OLEDs), our future could include thin and lightweight computers that can roll up like paper. Flexible OLEDs built upon a plastic substrate are becoming quite popular in the tech world because of their use in next-generation displays that can be bent or rolled while still…


Video of the Day: X-ray laser blows up water droplets

May 24, 2016

Researchers from the Department of Energy’s SLAC National Accelerator Laboratory have made the first microscopic movies of liquids getting vaporized by the world’s brightest X-ray laser. The video doesn’t only make for a visually appealing movie, but the data retrieved from it could lead to better experiments using X-ray lasers, which emit bright, fast flashes of light that take atomic-level snapshots of some of nature’s speediest processes. Their new studies, portrayed…


How living cells can react to smartphone lights

May 9, 2016

Scientists at the University of St. Andrews are using smartphone lights to activate live cells. The researchers discovered lighting used in smartphone displays can actually activate live cells that are genetically programmed to respond to light. Professor Malte Gather from the School of Physics and Astronomy, who led the research, compares the team’s findings to cells watching TV. The researchers harnessed organic light emitting diodes’ (OLEDs) ability to “turn on” individual cells…


Lockheed Martin wants to shrink space telescopes, increase power

January 25, 2016

Lockheed Martin is now working on a technology that can shrink a telescope’s size, while making it even more powerful for applications in high-resolution space imaging. In order to capture better photographs of space happenings millions of miles away, astronomers would need even bigger telescopes. The problem with increasing the size of space telescopes is that they became too large to launch into orbit. That’s where Lockheed Martin comes in. “We…


New sensor for fitness tracking in smartwatches and fitness armbands

SFH 7060 optical sensor
August 17, 2015

Osram Opto Semiconductors is optimizing its portfolio for the optical measurement of pulse rates and blood oxygen levels   The new SFH 7060 sensor from Osram Opto Semiconductors is designed to measure pulse rates and the oxygen saturation level of blood. It offers excellent signal quality and low energy consumption. The main applications for this component include mobile devices such as smartwatches and fitness armbands – also known as wearables…