Articles tagged with Photons
Researchers found a correlation between fluence and duration for both short and long bursts, but the degree of this relationship is statistically different at a 4.5 sigma significance level. This suggests that short bursts may originate from fundamentally different physical processes than long bursts.
Vision researchers found that rhodopsin molecules pair up in neat double rows on the outer-segment disc membranes of rods. This arrangement allows for efficient absorption of dim light and amplification of faint signals, enabling the brain to detect individual photons.
Scientists using Whipple Observatory gamma-ray telescope discover energetic gamma-ray flares from active galaxies, revealing relativistic jets and compact emission regions. The study also holds promise to reveal nature of 'dark matter' and 'dark energy', which dominate universe's mass budget.
Researchers at Georgia Institute of Technology have created the world's smallest electroluminescent light source using individual silver molecules. The technique can lead to new optical interconnects, microscopy, and lithography applications. By applying high-frequency alternating current, they observed a dramatic enhancement in response.
Photonic crystals, which can act as tiny optical components for managing photons, may enable the development of miniaturized optical components and circuits. The new technique could accelerate computing to the speed of light by reducing the size of optical components.
Researchers have made significant breakthroughs in photon entanglement, attosecond camera technology, and molecular conductivity. Maximally entangled photons can be used for quantum teleportation, while the attosecond camera allows for the observation of electron dynamics within atoms. Additionally, a team has demonstrated controlled s...
Researchers have found a way to use a single photon to initiate the transfer of two electrons in a photochemical reaction, offering greater efficiency. The long-lived charge separation appears to last for several minutes, which is longer than usual.
Researchers at UC Riverside demonstrate the lateral Casimir force, a new type of force that can create horizontal sliding motion between surfaces. This shape-dependent force has vast implications for micromachines and microdevices.
A UB team has demonstrated a breakthrough in three-photon pumped frequency upconversion, producing fluorescent emissions with higher energy than the laser's pumping photon. This process enables efficient light production for applications such as optical imaging, bioimaging, diagnostics and photodynamic therapy of deep tissue tumors.
Researchers at University of Toronto have discovered a photon switch that can manipulate photons to transmit data in computers. The discovery has the potential to solve problems that traditional computers cannot, including database searches and cracking codes on the Internet.
Imamoglu's research focuses on quantum dots and nanostructures, exploring their properties and applications in quantum information processing. He has laid out a multi-step research program to address the feasibility of quantum computing, including work on optical pulses and memory devices.
A team of researchers at UCSB has built a device that can repeatedly detect the emission of a single photon, paving the way for unconditional security in communication. This achievement is crucial for quantum cryptography, which ensures the secrecy of information by altering the key upon eavesdropping.
Researchers at Stanford University have developed a system to produce single photons 86% of the time, making it easier to detect intruders and ensure secure communications. This achievement takes cyberspace closer to quantum-secured information transfer.
Physicists have discovered that entangled photons, a phenomenon in quantum physics, can create smaller features on lithographic masks than classical physics allows. This breakthrough could enable manufacturers to continue miniaturizing and speeding up computer chips, potentially breaking the Moore's law barrier.
Researchers successfully sent encrypted messages using quantum entanglement, a phenomenon that allows particles to be linked across distances. The demonstration marks a significant step towards creating secret codes that are virtually unbreakable and could eventually replace current data encryption methods.
Researchers at Max Planck Institute and Munich University have successfully trapped individual photons in a resonator, achieving a milestone in quantum physics. The experiment demonstrates Planck's oscillators, predicting the existence of photons over 100 years ago.
Researchers at Berkeley Lab have developed a new technique called MARPE, which directly determines the identity of an atom and its neighbors. The method works by analyzing the energies of electrons emitted when excited by photons, revealing the presence and identity of neighboring atoms.
Physicists have demonstrated that single photons and other quantum particles can store a maximum amount of readable information in the presence of noise and real-world disturbances. This finding provides insights into how little energy is required to store complex messages, advancing the idea that information is physical in nature.
A team of astrophysicists discovered fewer low-energy photons in the universe than previously thought, suggesting that high-energy gamma rays may not be interacting with as many low-energy photons as expected. This observation could alter current theories of the history of the universe and galaxy formation.