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Aalto University News
Metamaterial’s Magnetoelectric Response Could Enable New Applications
ESPOO, Finland, Feb. 21, 2024 — An optical metamaterial from Aalto University has the potential to enable applications that would otherwise need a strong external magnetic field to work. The 3D metamaterial demonstrates an isotropic and resonant nonreciprocal magnetoelectric (NME)...
Simulated Technique Cuts Losses in Optical Resonators
ESPOO, Finland, Sept. 13, 2023 — Optical resonators are used to control light in a range of photonic applications, from pocket-size laser pointers to quantum computers. When a resonator experiences optical loss, its ability to trap and concentrate photons deteriorates, reducing its...
Neuromorphic Sensor Recognizes Motion, Predicts Path
ESPOO, Finland, April 18, 2023 — A bio-inspired sensor developed by researchers at Aalto University can recognize moving objects in a single frame from a video and successfully predict where they will move to. The sensor has use in dynamic vision sensing, automatic inspection,...
Magnetically Controlled Nanolasers Protect Optical Signals
ESPOO, Finland, Jan. 4, 2022 — A lasing control mechanism, introduced by a research team at Aalto University, enables users to control plasmonic nanolasers remotely, using a magnetic field. Until now, the only way to switch plasmonic nanolasers on and off has been through direct...
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...
Data-Driven Spectroscopy Has Potential to Speed Development
ESPOO, Finland, Feb. 1, 2019 — Artificial Intelligence for Spectroscopy (ARTIST) is a new approach to spectroscopy that uses artificial intelligence (AI) to accelerate the spectroscopic analysis of materials and discovery of new molecules or materials. ARTIST was developed by...
Dry-Etched Black Silicon Could Lower Solar Power Costs, Speed Industrial Production
HOUGHTON, Mich., Sept. 10, 2018 — One approach to improving solar cell efficiency is to shift to nanostructured silicon (black-Si, or b-Si), which has been shown to decrease reflective losses in multicrystalline silicon (mc-Si) wafers and prevent cell power conversion efficiency...
Nanotube Film Increases Longevity of Challenger Solar Cells
ESPOO, Finland, March 20, 2017 — “Random network” nanotube films could improve the long-term stability of solar cells made of perovskite. Researchers from Aalto University in Finland, Uppsala University in Sweden, and École polytechnique fédérale de...
Plasmonic Nanolaser Opens the Way for Coherent On-Chip Light Sources
ESPOO, Finland, Jan. 9, 2017 — Using “dark lattice modes” researchers at Aalto University have created a plasmonic nanolaser that operates at visible light frequencies. The laser works at length scales 1000 times smaller than the thickness of a human hair. The results...
Detector Seeks Better LED Photometry Results
HELSINKI, Sept. 22, 2015 — A new photometric device could improve the relative uncertainty in measuring the luminous efficacy of LEDs from approximately 5 percent today to 1 percent in the future. Photometers used by lamp manufacturers are largely produced and calibrated with...
Pseudoparticles Find Crucial Role in Energy Conversion
KARLSRUHE, Germany, May 15, 2015 — Pseudoparticles could help make more efficient the conversion of light into storable energy, ushering in the potential for a decisive sustainable energy supply. A team from the Karlsruhe Institute of Technology (KIT), in collaboration with the Fritz...
University of Eastern Finland Opens Photonics Institute
JOENSUU, Finland, May 28, 2013 — A new Institute of Photonics launched at the Faculty of Science and Forestry of the University of Eastern Finland aims to enhance education and research in photonics and to promote international collaboration in the field.
Virtual photons become real in a vacuum
ESPOO, Finland – By changing the position of a mirror inside a vacuum, virtual particles can be transformed into real photons that can be experimentally observed. In a vacuum, there is energy and noise, the existence of which follows the uncertainty principle in...
Virtual Photons Become Real in a Vacuum
ESPOO, Finland, Feb. 26, 2013 — By changing the position of a mirror inside a vacuum, virtual particles can be transformed into real photons that can be experimentally observed.
Black Silicon Boosts Solar Cell Efficiency
HELSINKI, Feb. 7, 2013 — Black silicon surfaces on solar cells can elevate their efficiency to new levels, research out of Finland reports.
Group to Develop Stroke Sensor
MONS, Belgium, Jan. 14, 2011 — The P3SENS consortium has been formed to develop an immunoassay detection device suitable for emergency stroke diagnosis. Co-funded by the Seventh EU Framework Program, the €3.6 million project will develop photonic crystal technology for...
(16 results found)
May 2024
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