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Research & Technology News

New Approach Facilitates Spectroscopy on Individual Molecules
MUNICH, March 11, 2019 — A new spectroscopic measurement method, developed by scientists at the Technical University of Munich (TUM), determines the spectral properties of individual molecules, providing precise information about the interaction of single molecules with their environment. The new technique uses a compact instrument developed by the Munich scientists in collaboration with colleagues at the Politecnico di Milano to generate a double laser pulse with a controlled delay in between.
Quantum Dots Are Tuned to Build IR Camera Cheaply, Efficiently
CHICAGO, March 11, 2019 — To build an inexpensive IR camera, scientists at the University of Chicago leveraged the wide spectral tunability of colloidal quantum dots (CQDs), tweaking the CQDs to develop a formula to detect shortwave IR and another formula to detect midwave...
New Technique Uses Deep Learning to Speed Molecular Imaging
TROY, N.Y., March 8, 2019 — A deep learning approach to image reconstruction, developed by a team at Rensselaer Polytechnic Institute (RPI), generates comprehensive molecular images of organs and tumors in living organisms at high quality and ultrafast speed. The team’s new...
Optical Clocks Contribute to Steering International Atomic Time
TOKYO, March 7, 2019 — Optical clocks, which have seen rapid progress in the last 20 years, have evaluated the “one second” tick of International Atomic Time (TAI). The resulting data was provided to the Bureau International des Poids et Mesures (BIPM), which used the...
Light Pulses Transform Mott Insulators
WAKO, Japan, March 7, 2019 — Scientists from the RIKEN Cluster for Pioneering Research have used light pulses to transform Mott insulators into materials that can conduct electricity without energy loss. Through numerical simulations, the researchers showed that pulse...
New Approach to Measuring Large-Scale Photonic Correlation at Single-Photon Level
SHANGHAI, March 6, 2019 — A multi-institutional research team has demonstrated a way to map and measure large-scale photonic quantum correlation with single-photon sensitivity. The ability to measure thousands of instances of quantum correlation is critical for making...
Deep Reinforcement Learning Improves Automatic Routing Performance in OTNs
BARCELONA, Spain, March 6, 2019 — Researchers from Universitat Politècnica de Catalunya and Huawei have retooled an AI technique to make optical transport networks (OTNs) run more efficiently. OTNs could be used to package data in the fiber optic cables used for transmitting data...
New Research Seeks Solution to Deploying QKD Technology Over Fiber Optics
TOKYO, March 6, 2019 — The National Institute of Information and Communications Technology (NICT) is researching potential encryption methods for quantum communication that could be integrated into fiber optic networks. The research focuses on how to achieve secure...
Research Team Discovers How to Create and Control Structural Color
STATE COLLEGE, Pa., and CAMBRIDGE, Mass., March 4, 2019 — Researchers from Pennsylvania State University (Penn State) and the Massachusetts Institute of Technology (MIT) have shown how a clear surface covered in transparent droplets and lit with a single white-light lamp can produce bright, iridescent...
Miami University Using LumiGrow LEDs to Study Agricultural Development Genetics
OXFORD, Ohio, March 1, 2019 — Assistant Professor Rob Baker at the Miami University Department of Biology is using LumiGrow LEDs to produce multiple sub-species of Brassica rapa seeds after dismal seed production affected his developmental genetics research. The Brassica genus...
Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication
GAITHERSBURG, Md., March 1, 2019 — A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers. However, the optical components that store and process quantum information typically require...
UH Chemist Earns CAREER Award for Work in Luminescence
HOUSTON, Feb. 28, 2019 — University of Houston assistant professor Thomas Teets has received a five-year, $589,000 National Science Foundation CAREER Award to explore synthetic strategies for producing photoactive organometallic compounds. Teets, an experimental chemist,...
Laser ‘Drill’ Sets a New Record in Laser-Driven Electron Acceleration
BERKELEY, Calif., Feb. 27, 2019 — Using a laser pulse to heat up and “drill” through a plasma, scientists at Lawrence Berkeley National Laboratory have nearly doubled the previous record for laser-driven particle acceleration. The new record of propelling electrons to 7.8 electron...
UA Names College of Optical Sciences After Founding Dean
TUCSON, Ariz., Feb. 27, 2019 — University of Arizona President Robert C. Robbins announced Feb. 25 that its College of Optical Sciences will be renamed in honor of Professor Emeritus and founding dean James C. Wyant, who has donated $30 million to the college over the past six...
ICFO Showcases Graphene-Based Wearables at MWC 2019
BARCELONA, Spain, Feb. 25, 2019 — A new device from the Institute of Photonic Sciences (ICFO) will allow users to monitor their level of exposure to sunlight through a UV sensor. Designed as a flexible, transparent, disposable patch, it connects to a mobile device and alerts the...
Perovskite Quantum Dots Deliver Coherent Single-Photon Emission
CAMBRIDGE, Mass., Feb. 25, 2019 — In an advancement toward a single photon source for use in quantum computing and communications devices, researchers at the Massachusetts Institute of Technology (MIT) and ETH Zurich showed that individual perovskite quantum dots could be used as a...
Funding Aims to Improve Global Gravitational Wave Network
SWINDON, England, Feb. 25, 2019 — U.S. and U.K. science funding agencies have earmarked $30 million in additional funding aimed at significantly increasing the sensitivity of gravitational wave observatories around the globe. Improvements to the global gravitational wave network,...
Defects in Perovskites Could Have Positive Impact on Optoelectronic Devices
ST. LOUIS, Feb. 22, 2019 — In a quest to design more efficient solar cells and LEDs, an engineering team from the University of Washington in St. Louis analyzed different types of defects in the semiconductor material that enables such devices to determine if and how these...
Thermally Painted Metasurfaces Yield Perfect Light Absorbers
CLEVELAND, Ohio, Feb. 22, 2019 — A 3000-year-old metallurgy technique of heating metal to create vibrant colors creates a nanostructured surface that acts as a perfect light absorber, researchers from Case Western Reserve University have found. The team applied its findings to...
Control of Nanowire Growth Advances Silicon Photonics
LAUSANNE, Switzerland, Feb. 21, 2019 — Researchers from the Swiss Federal Institute of Technology Luasanne (EPFL) Laboratory of Semiconductor Materials, together with colleagues from the Massachusetts Institute of Technology (MIT) and the Ioffe Institute in Russia, have discovered a way...
‘Crystal Ball’ VR System Supports Collaborative Tasks
VANCOUVER and SASKATOON, Canada, Feb. 21, 2019 — Researchers at the University of British Columbia and University of Saskatchewan have developed a ball-shaped VR display that supports up to two users at a time, using advanced calibration and graphics rendering techniques that produce a complete,...
UTA Engineer Earns NSF CAREER Grant to Develop Bioinspired 3D materials
ARLINGTON, Texas, Feb. 20, 2018 — Kyungsuk Yum, an assistant professor at the University of Texas at Arlington, has been awarded a five-year, $500,000 National Science Foundation (NSF) Early Career Development Program grant to design and develop bioinspired 3D materials with...
Strain Engineering Enables Precise Placement of Single-Photon Emitters
ROME, N.Y., and WASHINGTON, Feb. 20, 2019 — Scientists at the U.S. Naval Research Laboratory (NRL) and the Air Force Research Laboratory (AFRL) have developed a way to directly write quantum light sources, which emit a single photon of light at a time, into monolayer semiconductors such as...
With a Few Tweaks, a Near-Perfect Absorber Can Become a Time-Reversed Laser
DURHAM, N.C., Feb. 19, 2019 — With small adjustments, a near-perfect absorber of electromagnetic waves can be changed into a coherent perfect absorber (CPA), a device that absorbs coherent light and shows near-zero reflectance and high absorption. A CPA, also known as a...
New Use for Quantum Dots: Tracking the Pollination Process
STELLENBOSCH, South Africa, Feb. 18, 2019 — A pollination biologist from Stellenbosch University is breaking new ground in his field by using quantum dots to track and label individual pollen grains. His novel, low-cost method could enable biologists to track the whole pollination process,...

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