Europhysics News

List of Papers (Total 1,110)

Royal Academy of Sciences and Arts of Barcelona

In 1764 (almost 250 years ago), a group of educated citizen of Barcelona decided to organize a “Physico-Mathematical Conference” to follow the progress of science and technology. Several years earlier, in 1717, and as a consequence of the Catalonia’s stance against King Philip V at the beginning of the 18th century, the Catalan universities (including the University of Barcelona...

A look inside white OLEDs

White organic light-emitting diodes (OLEDs) for lighting are finding their way to the market. These OLEDs have organic layers only a few nanometres thick. Improving their efficiency and stability requires nanometre-precision information about where the light is emitted. Reconstruction of the emission profile from the measured emission and molecular-scale modelling provide a...

The scientific consensus on climate change - Combating a two-decade campaign attacking

New research published this year found that among peer-reviewed climate papers stating a position on anthropogenic global warming, over 97% endorsed the scientific consensus that humans were causing climate change. Meanwhile, the public think there is a 50:50 debate among climate scientists. How did this “consensus gap” arise and can it be closed?

An eye-witness report on how the CD came about

The Compact Disc was a smashing success. It pushed the traditional 45 and 33 RPM vinyl records off the market in an astonishingly short period of time. But the struggle to develop the CD and to get it on the market was just as fascinating.

Giant impact: accretion and evolution of the Moon - Implications for Earth, Mars and the Solar System as a whole

Our planetary system has not always been as serene as it appears to us today. Exploration of the Moon has shown that disastrous collisions and violent epochs have occurred in the early part of its history. Indeed, a collision of the Earth with another planet – the Giant Impact – is the most widely accepted theory for the origin of the Moon. Several hundred million years later...

The Netherlands’ Physical Society, NNV, a vibrant community of 4000 physicists

It was a lively conference, the annual meeting of the Netherlands’ Physical Society (Nederlandse Natuurkundige Vereniging, NNV) on April 10 at Eindhoven University of Technology. In addition to the plenary morning sessions and six parallel sessions in the afternoon, there were award ceremonies for the Teacher of the year and for the best Bachelor thesis, a Young Speakers Contest...

Little big photon

A photon, the constituent particle of light, carries only a tiny amount of energy. Furthermore photons do not interact with one another in vacuum, and generally only very weakly in optical media. Nonetheless, it has recently become possible for a single photon to switch on or off hundreds of other photons, or to generate entanglement between thousands of atoms.

Bursting money bins, the ice and water structure

In the classic comics by Carl Barks, “The Big Bin on Killmotor Hill” [1], Uncle Scrooge, trying to defend his money bin from the Beagle Boys, follows a suggestion by Donald Duck, and fills the bin with water. Unfortunately, that night is going be the coldest one in the history of Ducksburg. The water freezes, bursting the "ten-foot walls

Extreme light - An intense pursuit of fundamental high energy physics

By the compression of petawatt pulses to multi-exawatt, a new route for the generation of Schwinger intensities capable of producing highenergy radiation and particle beams with extremely short time structure down to the attosecond-zeptosecond regime is being presented. Far from the traditional laser investigation in the eV regime, this laser-based approach offers a new paradigm...

Controlling light at the nanoscale

Nanophotonics aims to control light on length scales smaller than the wavelength. By harnessing the interaction of light with matter, nanophotonics has allowed to mold the flow of light and control its emission and absorption on a length scale of just a few nanometers.

Soft Janus, wrinkles and all

Right now you are probably sitting on a comfy cushion. This is most likely filled with polyurethane (PU) foam. PUs are very long molecules made up of many repeating units. If the repeating units are prepolymers – intermediate-mass building blocks – with more than two reactive end groups, a three-dimensional network will form – a rubber, or elastomer, which can behave elastically...

The first fusion reactor: ITER

Established by the signature of the ITER Agreement in November 2006 and currently under construction at St Paul-lez-Durance in southern France, the ITER project [1,2] involves the European Union (including Switzerland), China, India, Japan, the Russian Federation, South Korea and the United States. ITER (‘the way’ in Latin) is a critical step in the development of fusion energy...

Properties of nuclei probed by laser light

Viewing objects as small as atomic nuclei by visible light sounds quite unrealistic. However, nuclei usually appear as constituents of atoms whose excitations are indeed associated with the absorption and emission of light. Nuclei can thus interact with light via the atomic system as a whole.

Stella Lux: the energy-positive family car

A family car that runs purely on solar energy, and that charges your home batteries when not on the road. In other words: a car that is Energy-positive. Can such a car be built? The answer is ‘Yes!’, as was shown by an enthusiastic group of students at Eindhoven University of Technology.

Gravitational Physics: the birth of a new era

We live the golden age of cosmology, while the era of gravitational astronomy has finally begun. Still, fundamental puzzles remain. Standard cosmology is formulated within the framework of Einstein’s General theory of Relativity. Notwithstanding, General Relativity is not adequate to explain the earliest stages of cosmic existence, and cannot provide an explanation for the Big...

The largest renewable, easily exploitable, and economically sustainable energy resource

Sun, the ultimate energy resource of our planet, transfers energy to the Earth at an average power of 23,000 TW. Earth surface can be regarded as a huge panel transforming solar energy into a more convenient mechanical form, the wind. Since millennia wind is recognized as an exploitable form of energy and it is common knowledge that the higher you go, the stronger the winds flow...