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ultrafast photonics News
Ultrafast Terahertz Magnetometry Could Enable Heat-Free Magnetism Control
BIELEFELD, Germany, Sept. 1, 2020 — Physicists have precisely measured the ultrafast change in a magnetic state in materials by observing the emission of terahertz (THz) radiation that accompanies such a change in magnetization. An international research team that included scientists...
Bose-Einstein Condensate Formed in Record-Breaking Time
ESPOO, Finland, July 10, 2020 — Researchers at Aalto University and the University of Eastern Finland have created a Bose-Einstein condensate in femtoseconds (fs) — a record-breaking time for producing this state of matter. Bose-Einstein condensation is a quantum phenomenon...
Terahertz Field Stabilizes Surface State of Topological Materials
AMES, Iowa, March 4, 2020 — Some topological materials are insulators in their bulk form but possess electron-conducting behavior on their surfaces. The contrast in the behavior of these surface electrons is promising for future applications but challenging to control....
Ultrafast, Energy-Efficient All-Optical Switching with Plasmonic Waveguides
TOKYO, Dec. 20, 2019 — NTT and the Tokyo Institute of Technology (Tokyo Tech) have developed an all-optical switch that operates in the ultrafast regime with a response time in the femtosecond (fs) range and with energy consumption in the femtojoule (fJ) range. To achieve...
Researchers Generate New Form of Light
BERLIN, Oct. 30, 2019 — A team composed of researchers from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), the Israel Institute of Technology (Technion), and Technische Universitaet Berlin (TU Berlin) has generated and characterized a new...
Tuning Quantum States of Matter Using Ultrafast Photonics
AMES, Iowa, Aug. 23, 2019 — Researchers at Iowa State University, led by professor Jigang Wang, are using quantum terahertz spectroscopy to explore and control quantum states of matter. The researchers have announced three discoveries based on their studies. The first,...
Superfast Computing Method Uses Terahertz Light Pulses
LANCASTER, England, May 24, 2019 — An international team has discovered how to perform superfast data processing using light pulses instead of electricity. The team used magnets to create faster data processing speeds without incurring high energy costs. Traditionally in magnetic...
Supercrystal Exhibits a Stable State Over Time
STATE COLLEGE, Pa., March 19, 2019 — A supercrystal created by researchers from Pennsylvania State University and Argonne National Laboratory represents a new state of matter with long-term stability. The goal of the research team, which also includes researchers from the University of...
Open Source Software Can Model Interactions of Femtosecond Laser Pulses
WARSAW, Poland, Dec. 27, 2018 — Hussar software, developed by scientists from the Polish Academy of Sciences’ Institute of Physical Chemistry and the University of Warsaw, can be used to perform the complex computations necessary to mathematically describe the interactions that...
Gas-Jet Lens Supports Refractive Optics in XUV Domain
BERLIN, Dec. 3, 2018 — A new refractive lens, developed by scientists at the Max Born Institute (MBI), uses a jet of atoms to focus extreme UV (XUV) beams. The atom jet is used in place of glass, which is non-transparent in the XUV spectral region. In spite of a large...
Study Confirms Light-Induced Phase Changes Happen Differently, Results Could Be Used in Optoelectronics
CAMBRIDGE, Mass., Oct. 20, 2018 — New research from the Massachusetts Institute of Technology (MIT) demonstrates that light-generated phase changes occur differently than phase changes triggered by temperature. While optically induced phase changes have been observed before, the...
New Approach to Coherent Extreme-UV Emissions Could Be Used in Lithography
DAEJEON, South Korea, Oct. 2, 2018 — A new way to generate extreme-UV emissions using intense laser pulses, discovered by a team at the Institute for Basic Science (IBS), promises to find applications in high-resolution imaging, lithography, and ultrafast spectroscopy. The IBS team...
‘Time-Folded Optics’ Can Enhance Ultrafast Camera Capabilities
CAMBRIDGE, Mass., Aug. 13, 2018 — Researchers have used time as an additional dimension in the design of camera optics, and have demonstrated that by “folding” large spaces in time using time-resolved cavities, new camera capabilities can be added without loss of...
Plasmonic Antennas Could Deliver Ultrafast Pulses for THz Electronics
MUNICH, Germany, June 28, 2018 — In an experiment that combined the advantages of femtosecond nanophotonics with on-chip communications, researchers generated ultrashort electric pulses on a chip using metal structures (i.e., antennas) only a few nanometers in size, then ran the...
Terahertz Frequency Pulses Uncover Hidden State of Matter
AMES, Iowa, June 6, 2018 — Researchers have used ultrafast photonics to visualize electrons interacting as a hidden state of matter in a superconductive alloy. When fully understood and tuned, this state of matter could be used for faster, heat-free quantum computing,...
Scientists Discover Light, Gold Thin Films Interaction
ATLANTA, June 5, 2018 — Physicists have devised a way to determine the electronic properties of thin gold films after they interact with light, a discovery that could further scientific understanding of how light affects materials. When the energy of a photon is...
Short, Strong Laser Pulses Advance Understanding of Strongly Correlated Materials
BERLIN, Germany, April 20, 2018 — In its search for materials and technologies that could help push the speed and storage limits of silicon-based computer technology, a team of researchers looked at a category of materials known as “strongly correlated systems,” so called because of...
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For Ultrafast Photonics, New Applications Emerge
Jul 31, 2017 — Ultrafast lasers can do a lot, including create a room-temperature superconductor. That type of material transformation is just one emerging area of ultrafast photonics. Today, new ultrafast photonics applications found in lasers and sensors enable...
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Laser-Based Camera Enables 2D Femtosecond Videography
LUND, Sweden, May 8, 2017 — According to researchers, a video camera has been developed that can film at a rate equivalent to five trillion images per second, recording events as short as 0.2 trillionths of a second. The ultrafast camera, which enables 2D videography of...
Device More Efficiently Generates FS Pulses in UV Wavelength
Mar 10, 2017 — A miniature tripler for generating femtosecond (fs) pulses in the UV has demonstrated three times higher efficiency than previously used devices, in a design that is tiny enough to fit on a fingertip. The increase in efficiency is related to the...
“Optical switch” could make quantum computers more stable
CAMBRIDGE, Mass. – An optical switch that allows one photon to control the quantum state of another could yield a quantum computer that offers stability and control. Quantum particles have an odd property that enables them to be in “superposition”;...
Tamed light pulses control electrons
GARCHING, Germany – Physicists have controlled the field of white light pulses on a timescale shorter than an optical oscillation, a step forward in light technology and ultrafast photonics that could lead to light-based electronics. Monitoring the ultrafast...
A better limiter for laser light
LITTLE ROCK, Ark. – Fifty years after the birth of the laser, there may be better protection against the light fantastic, reports a team of researchers. They have found that nanographene, a form of carbon that comes in single atomic layers, might be the right choice...
Surface-Plasmon-Enhanced RandomLaser Demonstrated
Feb 1, 2005 — A team of researchers from the Ultrafast Photonics and Nano-Optics Laboratory at the University of Alberta in Edmonton, Alberta, Canada, has created a surface-plasmon-enhanced random laser by suspending silver nanoparticles in a laser dye. The...
(24 results found)
April 2024
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