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John Hagelin, Director of the Institute of Science, Technology and Public Policy Director of the Board of Advisors for the David Lynch Foundation.
Researchers from the Moscow Institute of Physics and Technology (MIPT) have for the first time experimentally demonstrated that copper nanophotonic components can operate successfully in photonic devices – it was previously believed that only gold and silver components could do so. Copper components are not only just as good as components based on noble metals; they can also be easily implemented in integrated circuits using industry-standard fabrication processes. “This is a kind of revolution – using copper will solve one of the main problems in nanophotonics,” say the authors of the paper. The results have been published in the scientific journal Nano Letters.
The discovery, which is revolutionary for photonics and the computers of the future, was made by researchers from the Laboratory of Nanooptics and Plasmonics at MIPT’s Centre of Nanoscale Optoelectronics. They have succeeded, for the first time, in producing copper nanophotonic components, whose characteristics are just as good as those of gold components. It is interesting to note that the scientists fabricated the copper components using the process compatible with the industry-standard manufacturing technologies that are used today to produce modern integrated circuits. This means that in the very near future copper nanophotonic components will form a basis for the development of energy-efficient light sources, ultra-sensitive sensors, as well as high-performance optoelectronic processors with several thousand cores.
The discovery was made under what is known as nanophotonics – a branch of research which aims, among other things, to replace existing components in data processing devices with more modern components by using photons instead of electrons. However, while transistors can be scaled down in size to a few nanometres, the diffraction of light limits the minimum dimensions of photonic components to the size of about the light wavelength (~1 micrometre). Despite the fundamental nature of this so-called diffraction limit, one can overcome it by using metal-dielectric structures to create truly nanoscale photonic components. Firstly, most metals show a negative permittivity at optical frequencies, and light cannot propagate through them, penetrating to a depth of only 25 nanometres. Secondly, light may be converted into surface plasmon polaritons, surface waves propagating along the surface of a metal. This makes it possible to switch from conventional 3D photonics to 2D surface plasmon photonics, which is known as plasmonics. This offers the possibility of controlling light at a scale of around 100 nanometres, i.e., far beyond the diffraction limit.
Continue reading “Physicists promise a copper revolution in nanophotonics” »
In June, a team of programmers will release a ground-breaking new video game called No Man’s Sky, which uses artificial intelligence and procedural generation to self-create an entire cosmos full of planets. Running off 600,000 lines of code, the game creates an artificial galaxy populated by 18,446,744,073,709,551,616 unique planets that you can travel to and explore.
Though this artificial universe is realistic down to the dimensions of a blade of grass, faster than light-speed travel is available in order for players to bridge the unfathomable distances between stars.
Chief architect Sean Murray says No Man’s Sky is different than most games because the landscapes and distances aren’t faked. While most space-based games utilize a skybox that simply rotates between different modalities, No Man’s Sky is virtually limitless and employs real physics.
Continue reading “The Video Game that Made Elon Musk Question Whether Our Reality is a Simulation” »
Recent advances in lasers suggest that we may see rockets propelled by light earlier than we had imagined. NASA scientist Philip Lubin and his team are working on a system that would use Earth-based lasers to allow space travel to far-away places in just a fraction of the time needed with current technology.
Using earth based lasers to push along a spacecraft instead of on board hydrocarbon-based fuel could dramatically reduce travel time to Mars, within our lifetime. Currently, it takes five months for a space craft to reach Mars. But, with photonic propulsion, it is likely that small crafts filled with experiments will reach Mars in just 3 days. Large spaceships with astronauts and life support systems will take only one month, which is about 20% of the duration of a current trip.
What’s next? Lubin believes that we may be able to send small crafts with scientific experiments to exoplanets as fast as 5% light speed in, perhaps, 30 years. Eventually, he claims that the technology will carry humans at speeds up to 20% light speed.
Read about it here.
Antimatter propulsion is a lot closer than most aerospace engineers would ever imagine and these guys looking for cash for the next phase of their own research deserve kudos for trying to take this to the next level.
Dreams of antimatter space propulsion are closer to reality than most rocket scientists could ever imagine, says former Fermilab physicist Gerald Jackson. In fact, if money were no object, he says an antimatter-driven spacecraft prototype could be tested within a decade.
Astronomers have found an extraordinary trail of gas greater than 300,000 light years across originating from a nearby galaxy called NGC 4569, according to a report in Astronomy & Astrophysics.
The tail is comprised of hydrogen gas, the material new stars are born from, and is five times longer than the galaxy itself.
Meet the opponents of BMIs & their report.
*This article only represents a very small fraction of the research regarding the dangers associated with these devices. We encourage you to further your own research, and just wanted to provide a base to let you know that it’s something more of us need to pay attention to.
China has proposals for gravitational wave observatories drafted, but will the government approve them? How will they affect the country’s rank in space research?
The scientists at LIGO may be celebrating, but they’re about to have some stiff competition.
The People’s Republic of China now has three projects lined up to investigate gravitational waves as reported by the state media yesterday. These projects were decided upon just days after US scientists confirmed Einstein’s prediction.
