Photonics News

New Technique Reveals Internal Characteristics of Photonic Crystals

November 29, 2016

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A New Method for Analyzing Crystal Structure

Scientists at MIT have developed a new technique that reveals the inner details of photonic crystals, synthetic materials whose exotic optical properties are the subject of widespread research. Photonic crystals are generally made by drilling millions of closely spaced, minuscule holes in a slab of transparent material, using variations of microchip-fabrication methods. Depending on the […]

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Yale Engineers Advance Quantum Technology With Photon Control

November 1, 2016

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Advancing Quantum Technology With Photon Control

Engineers from Yale University have developed a new technique to control the frequency of single photons. The ability to control the frequency of single photons is crucial to realize the potential of quantum communications and quantum computing. The current methods for changing photon frequency, however, bring with them significant drawbacks. Researchers in the lab of […]

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Quantum Physics – Teleporting Toward a Quantum Internet

October 14, 2016

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Teleporting Toward a Quantum Internet

New experiments in Calgary tested quantum teleportation in actual infrastructure, representing a major step forward for the technology. Quantum physics is a field that appears to give scientists superpowers. Those who understand the world of extremely small or cold particles can perform amazing feats with them — including teleportation — that appear to bend reality. […]

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New Research Opens New Realms of Light-Matter Interaction

July 14, 2016

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MIT Study Opens New Realms of Light-Matter Interaction

A new study from MIT shows that some “forbidden” light emissions are in fact possible, and could enable new sensors and light-emitting devices. A new MIT study could open up new areas of technology based on types of light emission that had been thought to be “forbidden,” or at least so unlikely as to be […]

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Physicists Amplify Light Using Sound on a Silicon Chip

June 13, 2016

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Scientists Amplify Light Using Sound on a Silicon Chip

A team of physicists has discovered a way to greatly boost the intensity of light waves on a silicon microchip using the power of sound. In a study to be published in the journal Nature Photonics, a team led by Peter Rakich describes a new waveguide system that harnesses the ability to precisely control the […]

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New Research May Help in the Development of Nano-Optical Transistors for a Photonic Computer

May 5, 2016

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A Step Towards the Photonic Computer

Researchers show that a single molecule allows a beam of light with a few photons to be controlled – a step towards the photonic computer. The Jedi knights of the Star Wars saga are engaged in an impossible fight. This does not result from the superiority of the enemy empire, but from physics because laser […]

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Physicists Test the Response Time of Electrons

February 18, 2016

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Researchers Determine the Delay with Which Electrons in Atoms Respond to the Electromagnetic Forces of Light

Researchers from the Laboratory for Attosecond Physics generated for the first time visible flashes of light in attosecond dimensions. They dispatched the light-flashes to electrons in krypton atoms. Through the experiment the researchers have been able to display that the electrons, which are stimulated by the flashes, needed roughly 100 attoseconds to respond to the […]

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Two-Stage Process Makes Incandescent Bulbs More Efficient

January 11, 2016

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New Two-Stage Process Makes Incandescent Bulbs More Efficient

Using a two-stage process that captures heat loss and reflects it back to the filament to be re-absorbed and re-emitted as visible light, engineers from MIT have combined the warm look of traditional light bulbs with 21st-century energy efficiency. Traditional light bulbs, thought to be well on their way to oblivion, may receive a reprieve […]

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Physicists Achieve Quantum Entanglement at Room Temperature

November 22, 2015

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Quantum Entanglement Achieved at Room Temperature

A newly published study from the University of Chicago and Argonne National Laboratory demonstrates how macroscopic entanglement can be generated at room temperature and in a small magnetic field. Entanglement is one of the strangest phenomena predicted by quantum mechanics, the theory that underlies most of modern physics: It says that two particles can be […]

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Engineers from Brown Develop Key Component for Terahertz Wireless

September 17, 2015

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Engineers Develop Key Component for Terahertz Wireless

Engineers from Brown University have made progress on a key component for terahertz wireless: multiplexing and de-multiplexing a terahertz stream. Terahertz radiation could one day provide the backbone for wireless systems that can deliver data up to one hundred times faster than today’s cellular or Wi-Fi networks. But there remain many technical challenges to be […]

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Physicists Observe Weyl Points for the First Time

July 17, 2015

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Weyl Point Confirmed by Direct Observation for the First Time

An international team of physicists has confirmed for the first time the experimental observation of Weyl points. Part of a 1929 prediction by physicist Hermann Weyl — of a kind of massless particle that features a singular point in its energy spectrum called the “Weyl point” — has finally been confirmed by direct observation for […]

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Hyperentanglement Allows Photons to Carry More Data

July 1, 2015

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Engineers Demonstrate a New Way to Harness Light Particles

By slicing up and entangle each photon pair into multiple dimensions, researchers from UCLA have demonstrated a new way to harness light particles. A team of researchers led by UCLA electrical engineers has demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter […]

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UC Engineers Break Distance Barriers for Fiber Optic Signals

June 30, 2015

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Engineers Break Power and Distance Barriers for Fiber Optic Communication

Scientists at UC Diego have increased the maximum power at which optical signals can be sent through optical fibers, breaking key barriers that limit the distance information can travel in fiber optic cables and still be accurately deciphered by a receiver. This advance has the potential to increase the data transmission rates for the fiber […]

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Researchers Control Light Emission by Pairing Exotic 2D Materials

May 20, 2015

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Researchers Control Light Emission by Pairing 2D Materials

By applying a DC voltage to layers of graphene and boron nitride, researchers have demonstrated the ability to control light emission from a nearby atom. Researchers have found a way to couple the properties of different two-dimensional materials to provide an exceptional degree of control over light waves. They say this has the potential to […]

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Physicists Corral Electrons Using a New Quantum Tool

May 11, 2015

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Whispering Gallery Effect Confines Electrons

A newly published study details how physicists from MIT used a new “whispering gallery” effect to confine electrons in a nanoscale circular cavity in graphene. Researchers have succeeded in creating a new “whispering gallery” effect for electrons in a sheet of graphene — making it possible to precisely control a region that reflects electrons within […]

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New Photon Detectors – A Crucial Step Toward Quantum Chips

January 9, 2015

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MIT Researchers Take a Step Toward Quantum Chips

In a new study, researchers describe a micrometer-scale flip-chip process that enables scalable integration of superconducting nanowire single-photon detectors on a range of photonic circuits. A team of researchers has built an array of light detectors sensitive enough to register the arrival of individual light particles, or photons, and mounted them on a silicon optical […]

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Chip-Scale Device Enables Yale Engineers to ‘See Without Looking’

October 20, 2014

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Yale Engineers Develop a Chip Scale Device That Uses Interaction Free Measurement

Engineers at the Yale School of Engineering & Applied Science have developed a chip-scale device that uses the wave-particle duality of single photons to sense the presence of an object without interacting with it – a technique known as “interaction-free measurement.” “Our device uses silicon photonics to create interaction-free measurement on an integrated chip—something previously […]

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Engineers Develop New System to Harness the Full Spectrum of Available Solar Radiation

September 29, 2014

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New System Aims to Harness the Full Spectrum of Available Solar Radiation

Engineers at MIT have developed a two-dimensional metallic dielectric photonic crystal that has the ability to absorb sunlight from a wide range of angles while withstanding extremely high temperatures. The key to creating a material that would be ideal for converting solar energy to heat is tuning the material’s spectrum of absorption just right: It […]

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