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Chalmers University of Technology News
ADVA Rebrands as Adtran Networks SE; Swave Photonics Adds Investment Capital: Week in Brief: 06/23/23
MUNICH, June 23, 2023 — ADVA Optical Networking SE’s proposed name change to Adtran Networks SE was approved by the 2023 Annual General Meeting of ADVA Optical Networking SE on May 24. The change was registered in the commercial register of the local court of Jena,...
Single Laser on Optical Chip Sets Data Transmission Record
LYNGBY, Denmark, Nov. 3, 2022 — An international team of researchers has reportedly set a data transmission record using just a single laser and optical chip to transmit more than 1 Pbit/s. The researchers, from the Technical University of Denmark and Chalmers University of...
Continuous-Wave OPA Supports Noise-Reduced Chip-Scale Optical Signal Processing
GOTHENBURG, Sweden, Oct. 8, 2021 — An optical amplifier developed at Chalmers University of Technology is poised to radically improve optical communications performance. The compact amplifier is designed to fit on a chip and amplify light without generating excess noise. Light-based...
Inverted Material Design Brings Reflective Screen into Focus
GOTHENBURG, Sweden, July 14, 2021 — Tungsten trioxide is the core material in a new type of reflective screen — sometimes described as “electronic paper” — that offers optimal color display and uses ambient light to keep energy consumption to a minimum. The new...
Microcomb Promises Durability in Biophotonics, Metrological Applications
GOTHENBURG, Sweden, March 9, 2021 — A microcomb developed by researchers from Chalmers University of Technology has the potential to herald significant advances in a variety of technologies, spanning metrology and optical communication. The design is based on two microresonators and...
Fabrication Technique Brings Metasurface Production Closer
GOTHENBURG, Sweden, June 15, 2020 — Researchers from Chalmers University of Technology have developed a new method of creating metasurfaces, which could bring mass production of ultrathin lenses closer to reality. Metasurfaces consist of a multitude of interacting nanoparticles that...
Tiny Light Box Merges States of Light, Matter
GOTHENBURG, Sweden, June 24, 2019 — A nanosize light box, built from stacked atomically thin material, has demonstrated the ability to capture and amplify light and link light to matter at the nanolevel. The light box, created by researchers at Chalmers University of Technology, makes...
Optical Sensor Based on Plasmonics Quickly Detects Hydrogen Gas
GÖTEBORG, Sweden, April 15, 2019 — An optical nanosensor that changes color when the amount of hydrogen in the environment changes could be used to quickly detect leaks when hydrogen mixes with air. Hydrogen, a clean and renewable energy carrier, could power vehicles in the future;...
Ultralow-Noise Amplifiers Show Exceptional Reach for High-Speed Optical Communications
GOTHENBURG, Sweden, July 9, 2018 — The reach and capacity in today’s fiber optical transmission links are limited by the accumulation of noise (originating from optical amplifiers in the link) and by the signal distortion from nonlinear effects in the transmission fiber. In...
Single-Nanoparticle Maps Pave the Way for Better, Safer Nanotechnology
GOTHENBURG, Sweden and KONGENS LYNGBY, Denmark, Oct. 30, 2017 — A method that combines electron microscopy and optical microscopy to map individual nanoparticle responses in different situations and contexts could pave the way for better nanomaterials and safer nanotechnology. Researchers at Chalmers University...
Cambridge Student Wins Outstanding Student Paper Prize
SAN FRANCISCO, March 12, 2014 — Johannes von Lindeiner has been awarded the 2014 Corning Outstanding Student Paper Competition top prize by the OSA Foundation and Corning Inc.
Optical Thread Thwarts Designer Knockoffs
GOTHENBURG, Sweden, May 7, 2013 — A thread with optical properties can be used to create invisible patterns in fabric and is seen as a potential way to differentiate designer clothing from knockoffs. Trade in counterfeit and pirated goods has exploded in the past few years, not only...
Light from vacuum supports quantum principle
GOTHENBURG, Sweden – The quantum mechanical principle that says a vacuum is not empty space but full of particles that fluctuate in and out of existence, has been observed for the first time as photons were coaxed to leave this virtual state and be captured as...
Let There Be Light...In a Vacuum
GOTHENBURG, Sweden, Nov. 17, 2011 — The quantum mechanical principle which states that a vacuum is not empty space, but instead teeming with particles that flit in and out of existence, has been observed for the first time as photons were coaxed to leave this virtual state and...
Optical Amplifier Breaks Low-Noise Record
GOTHENBURG, Sweden, June 23, 2011 — An optical amplifier that can amplify light with extremely low noise has been demonstrated at Chalmers University of Technology. The new amplifier enables a reach increase for optical fiber signals from, for example, 1000 to 4000 km. This could lead...
Fast Laser Could Speed Communications
GOTHENBURG, Sweden, March 11, 2011 — The speed of surface-emitting lasers has been increased four times to an error-free data rate and record of 40 Gb – a breakthrough that could lead to faster Internet traffic, computers and mobile phones. Up to 100,000 lasers can be...
Device Improves Global Data Transmission
SOUTHAMPTON, England, Sept. 9, 2010 — Researchers have developed a new data transmission system that could substantially improve the transmission capacity and energy efficiency of the world's optical communication networks. Working on the European Union-funded Framework Program 7...
Chiral Gold Nanocluster Demystified
JYVÄSKYLÄ, Finland, June 1, 2010 — After ten years, the mystery of the structural, electronic and optical properties of a chiral gold nanocluster, has finally been resolved. Researchers at the Department of Chemistry and Nanoscience Center (NSC) of the University of...
Imaging Photosynthetic Dynamics
GOTHENBURG, Sweden, May 11, 2010 — Researchers at the University of Gothenburg have managed, with the help of an advanced x-ray flash, to photograph the movement of atoms during photosynthesis. Photograph of a photosynthetic reaction taken with an 80-ms x-ray pulse. The...
Simpler, more cost-effective biosensing
GÖTEBORG, Sweden – There are two challenges facing optical label-free biosensing, especially for clinical applications, according to Alexandre Dmitriev of Chalmers University of Technology.< “The system should be able to work in physiological fluids –...
Lasers Make Nanostructures
GOTHENBURG, Sweden, June 3, 2008 -- A single laser pulse can reportedly create complex, ordered nanostructure systems, a previously unobserved phenomenon. Chalmers University of Technology (Gothenburg, Sweden) researchers said they have discovered a method for controlling the...
Optic Speed Record Set
GOTHENBURG, Sweden, Oct. 3, 2007 -- A world record in the measurement of optical high-speed signals was announced at the Europea Conference on Optical Communication, held last month in Berlin. Researchers with the Department of Microtechnology and Nanoscience at Chalmers University of...
(22 results found)
May 2024
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