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Home > News > Tags > photons
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A group of experts at the Rice University was recently able to demonstrate that superfluorescence – a phenomenon resulting in the collective emission of fluorescent light by an ensemble of excited atoms or ions – can occur in solid-state materials.
The first to see clues that superfluorescence could exi... |
31 January 2012
03:06 GMT |
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By using light and a device resembling a nanoscale loudspeaker, detecting weak electrical fields could become easier and more effective than ever, says a collaboration of international researchers. The approach could also be used to cool down electrical circuits.
What this means is that the technique could be used f... |
25 January 2012
14:01 GMT |
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Physicists in the United Kingdom, at the University of Southampton, propose the existence of a new force that is capable of making metamaterials attach themselves to other surfaces. The work is heavily influenced by a theory proposed by scientist James Clerk Maxwell, back in 1871.
At the time, the expert predicted ... |
17 January 2012
08:04 GMT |
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A group of scientists at the University of Cambridge, in the United Kingdom, announces the creation of an advanced type of semiconductor chip. They say that this device is capable of converting electrons into a type of quantum state that acts at a large-enough scale to become visible to the naked eye. The newly form... |
9 January 2012
04:17 GMT |
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Quantum computers are seen by many as the next big step towards faster systems of all sorts, but they aren't exactly easy or affordable to build, not yet.
Now, though, a group of Air Force and Florida Atlantic University researchers have finally come up with a way to create them with off-the-shelf components. ... |
21 December 2011
03:43 GMT |
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Researchers at the Massachusetts Institute of Technology (MIT), in Cambridge, say that the spin of electrons flowing on the surface of materials called topological insulators can be controlled rather easily, by varying the polarization of the light source being used to study the particles.
The discovery was made as ... |
5 December 2011
06:57 GMT |
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A group of experts at the Massachusetts Institute of Technology (MIT) announces the development of a technique that allows optical signals to be processed directly through a circuit, rather than be converted to electrons, and then back into photons.
This achievement brings the goal of constructing an optical compute... |
23 November 2011
07:33 GMT |
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In a paper published in the October 7 issue of the scientific journal Optics Express, physicists at the Princeton University show that trying to block the path of a light beam by covering the hole through which it passes tends to enhance the photon stream, rather than subdue it.
Conventional wisdom holds that placin... |
22 November 2011
18:41 GMT |
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Heeding advice coming in their direction from a wide variety of sources, researchers at the Italian lab that proposed the existence of faster-than-light neutrinos recreated their experiments, only to discover the same results over and over again.
Since their paper was first published, on September 23, the internati... |
21 November 2011
06:56 GMT |
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A group of engineers at the NASA Goddard Space Flight Center (GSFC), in Greenbelt, Maryland, announces the development of an extremely black material. They say that their creation is capable of absorbing more than 99 percent of photons that hit it.
This ability extends from far-infrared to ultraviolet wavelengths, ... |
9 November 2011
03:45 GMT |
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Spacecraft and astronauts in science-fiction movies have had access to tractor beam technology for decades, but it's only now that a team of researchers at NASA is beginning to actually research the concept in real-life. The group was recently awarded funds to conduct this investigation.
Simply put, a tractor b... |
1 November 2011
04:09 GMT |
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Investigators at the Harvard University announce the development of a new type of nanostructures, which they say could be of great potential use for the development of future quantum computers. The team says that a host of other high-tech applications are also possible. The investigation built on previous work, which... |
19 October 2011
03:45 GMT |
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Researchers with the Lincoln Laboratory at the Massachusetts Institute of Technology (MIT) announce the development of a new type of radar technology, which enables users to see through walls. This would have seemed the stuff of science-fiction only a few years ago. In order to understand this innovation it's i... |
18 October 2011
09:51 GMT |
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Scientists with the Oscillation Project with Emulsion-tRacking Apparatus (OPERA) at the Gran Sasso National Laboratory (GSNL), in Italy, a few weeks ago proposed the existence of neutrinos traveling faster than light. A researcher now provides a possible explanation for the readings.
The data the OPERA team submit... |
14 October 2011
10:39 GMT |
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University of Michigan (U-M) Department of Electrical Engineering and Computer Science professor Jay Guo and his team announce the development of a new type of screen pixel. The device also contains a solar cell, and could easily be used to boost the energy efficiency of electrical devices.
At first, the scientist... |
7 October 2011
15:01 GMT |
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On September 22, researchers from the Oscillation Project with Emulsion-tRacking Apparatus (OPERA) neutrino experiment, in Italy, proposed that neutrinos can travel faster than light, and provided evidence to support their claims. Now, physicists take a hard look at the numbers.
Based at the Gran Sasso National L... |
3 October 2011
06:53 GMT |
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A group of investigators at the Purdue University, led by expert Evgenii Narimanov, announces the development of a new type of metamaterial that is capable of absorbing much more light than any competitor on the market today. To a casual observer, the material appears extremely black.
The most potent black dyes c... |
29 September 2011
20:31 GMT |
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One of the most interesting implications of Albert Einstein's theory of general relativity has been demonstrated in a new study. Experts managed to confirm that light indeed travels from distant clusters in the manner implied by this fundamental building block of modern physics.
Interestingly enough, while t... |
29 September 2011
06:41 GMT |
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US Department of Energy's (DOE) Argonne National Laboratory (ANL) physicists argue that they may have just developed a new approach to increasing the efficiency of solar cells that convert light into electricity. The team here managed to develop a way to give light “amnesia.”
At this point, conver... |
27 September 2011
10:44 GMT |
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Italian physicists have just submitted a new research paper for peer review, saying that they have uncovered evidence suggesting that elementary particles called neutrinos travel faster than photons.
The implications of their findings are mind-boggling, as they deny the main principle in Albert Einstein's the... |
23 September 2011
05:45 GMT |
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Physicists at the Massachusetts Institute of Technology and Harvard University have succeeded in creating a system where photons can be used to control the quantum states of other photons. The advancement eliminates one of the major obstacles on the road to developing quantum computers.
Until now, the most widely-... |
9 September 2011
08:38 GMT |
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Investigators at the US Department of Energy's (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) announce the development of a new method for exercising dynamic control on the curved trajectories of Airy beams over metallic surfaces.This new advanced optics study goes against what physics students learn... |
12 August 2011
06:02 GMT |
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While traveling at or near the speed of light is known to produce interesting relativistic effects, actually being a photon is even weirder. Scientists say that these elementary particles – were they to be conscious – do not experience a lifespan in the strictest sense. In other words, from their own pers... |
8 August 2011
02:48 GMT |
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A group of investigators at the University of Maryland, in the United States, announce that they were recently able to simulate the end of time. They say that the conditions they replicated are known to astronomers as the Big Crunch, or the final event to take place in the Universe.
What the scientists determined ... |
30 July 2011
04:02 GMT |
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Researchers at the Massachusetts Institute of Technology (MIT), in Cambridge, announce the creation of a new type of photovoltaic device, that relies solely on heat to create electricity, rather than sunlight.Though it may seem like a stretch to associate the term photovoltaic to any technology not having to do with ... |
28 July 2011
11:02 GMT |
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The first experimental evidence that the Casimir effect actually exists were obtained by researchers from the Chalmers University in Sweden. Using a rapidly-moving mirror, virtual photons were turned into real ones, the team reports. The dynamical Casimir effect manages to confirm one of the most interesting and surp... |
26 May 2011
05:29 GMT |
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A group of engineers from the Stanford University announces the development of an extremely energy-efficient laser, which could potentially be used to revolutionize optical communications systems.This accomplishment could lead to the development of smaller and faster data transmission technologies, which could b... |
17 May 2011
08:05 GMT |
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Researchers have recently developed a new type of laser, one that can produce high-intensity laser light of almost any color by mimicking the nanoscale structure of colorful feathers found on some birds.This advancement was made possible by the fact that researchers managed to master and replicate the way birds'... |
9 May 2011
05:40 GMT |
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Photons – the basic particles that make up light – have a tendency to move about unimpeded, and in whichever direction they choose. But new materials currently being developed could allow experts to create one-way streets for light, in which photons travel in a single direction.These nonlinear materials c... |
20 April 2011
03:06 GMT |
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Researchers suggest in a new study that the telltale signs showing us today that the Big Bang actually existed may disappear entirely within about 1 trillion years. Our most distant descendants will have a very tough time figuring out what happened in the early Universe. The Big Bang model is now the most widely-acce... |
14 April 2011
05:02 GMT |
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A Russian cosmologist says that life could very well survive inside black holes, simply because these objects have the ability to sustain stable orbits within. Certain types of black holes have been found to have such orbits well past their event horizons, which was a remarkable discovery in itself. According to the ... |
11 April 2011
03:07 GMT |
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According to the conclusions of a new scientific investigation, it would appear that the efficiency of existing solar cells could be significantly improved by shrinking the size of light-absorbing particles called quantum dots (QD).
The size of these particles is directly related to its ability to transfer energy... |
26 March 2011
05:33 GMT |
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Throughout the highly-urbanized world, one of the most severe problems today is the lack of starlight, and even stars for that matter, from the night sky. Light pollution is preventing this light from making its way to us, and experts now want people's help to create a global map of light pollution.The world was... |
23 March 2011
03:50 GMT |
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Physicists in the United States say that it is possible to use a new semiconducting material to increase the efficiency of solar cells by more than 300 percent from current levels. They further add that this transition can be made rather inexpensively. In some of the world's most efficient solar cells, several l... |
31 January 2011
04:13 GMT |
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An international collaboration of experts has demonstrated that photons, the basic particles that make up light, can be used in a controlled manner for changing the electrical properties of graphene. This is one of the most interesting and studied new materials today. It was discovered only half a decade ago, but the... |
11 January 2011
03:06 GMT |
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A team of researchers in New York was recently able to determine that light waves can create the same type of force as the one allowing airplanes to take of in the air. The group determined that specific types of light beams can be used to create enough lift to carry microscopic particles around. The fact that light ... |
6 December 2010
05:40 GMT |
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A group of German researchers from the University of Bonn say that they were able to develop a new state of matter, which contains a new type of photons, the elementary particles that make up light.The stuff was obtained when the team, led by researchers Jan Klärs, Julian Schmitt, Frank Vewinger and Martin Weitz... |
25 November 2010
10:21 GMT |
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Physicists believe that they may have finally discovered the first signs of artificially-produced Hawking radiation, in a series of experiments that was carried out in Italy. Experts have in effect created an optical analog for the elusive form of radiation, that was hypothesized by famed physicist Stephen Hawking. F... |
10 November 2010
02:38 GMT |
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According to researchers in the United Kingdom, detecting hazardous radiation has just been made easier when investigators at the National Physical Laboratory (NPL) developed a new, portable radiation detector, that can work at long range. The instrument is apparently capable of detecting any traces of potentially ha... |
1 November 2010
12:07 GMT |
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Observing the Sun could lead to the discovery of hidden photons, astrophysicists say. These are elementary particles that are the result of dark matter interacting with the regular stuff. Experts are convinced they will find these photons soon.While looking at the Universe, astrophysicists figured out a relatively si... |
28 October 2010
10:01 GMT |
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The future of electricity production is undoubtedly in the renewable industry, but thus far high prices and low efficiency rates have stifled its spread with the general public. A new research could finally change all that.Investigators at the Rutgers University, in the United States, have developed a new type of mat... |
11 October 2010
09:56 GMT |
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Researchers at the Syracuse University show in a new research that promoting the acceleration of algae growth is possible through the use of light particles called photons.The group says that the method relies on using a very special type of light-manipulation technique, that is derived from nanotechnology.From ... |
25 August 2010
08:31 GMT |
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Metamaterials are a very special class of materials that are engineered specifically for a certain job. Though they are basically common chemical elements, or mixes thereof, their internal structures are arranged differently than they are in nature. As such, metamaterials can be used for a variety of applications for... |
5 August 2010
05:10 GMT |
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Light-controlled membranes represent a concept that is so advanced it hasn't even made its way into science-fiction literature. Nevertheless, they are now a reality, thanks to a study conducted by investigators at the University of Rochester. The group managed to create membranes which allow or prevent gas from ... |
2 August 2010
03:19 GMT |
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A group of investigators recently managed to achieve an important milestone in bringing the quantum computers of tomorrow closer to reality. Physicists in the United Kingdom managed to produce a device that can act as a source of entangled photons. The source can be controlled by the simple passing of an electric cur... |
3 June 2010
05:48 GMT |
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Taking a quantum dot-based infrared detector as a starting point, a group of American researchers managed to produce a new, advanced microlens that can boost the strength of an infrared signal. The main accomplishment here is that this is done with a nanoscale device that does not increase the noise (scrambled, unwan... |
19 May 2010
03:41 GMT |
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One of the main things black holes are known for is, erm, being black. They are not colorless per se, they just do not allow light to bounce of them, and therefore determine a color. All materials that absorb photons are generally considered to be black, but now astronomers say that the supermassive behemoths at the ... |
14 May 2010
10:46 GMT |
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Officials at the US Department of Energy's (DOE) Argonne National Laboratory (ANL) announce that authorities have agreed to fund planned upgrades for the research facility's Advanced Photon Source (APS). This particular instrument can be used for a variety of scientific investigations, including studies in ... |
4 May 2010
06:25 GMT |
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In a groundbreaking finding with significant implications for a wide array of research fields, engineers at the Princeton University managed to develop a new method of amplifying and clarifying signals carried by light using noise. The concept refers to the portion of the signal that usually gets distorted during tra... |
2 April 2010
05:27 GMT |
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Lasers are some of the most useful scientific equipment ever devised. They have contributed to the development of many fields of research and have led to countless innovations, from medicine to particle physics. They work by amplifying certain wavelengths of light, by bouncing photons back and forth between two surfa... |
29 March 2010
06:47 GMT |
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