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Research & Technology News

New Way of Modulating Color Emissions from Transparent Films Found
TOKYO, Sept. 4, 2020 — Researchers at the Tokyo University of Science have described a method for easily tuning the luminescence of a newly modified light-emitting solid transparent material by modulating its proton concentration through the application of voltage. The material was developed in the lab of Makoto Tadokoro. He and his team, including Hajime Kamebuchi of Nihon University and Taiho Yoshioka of Tokyo University of Science, began with a transparent polymeric film called Nafion. Nafion films are
Intravital Imaging Provides Insight into Liver Disease Progression
DAEJEON, South Korea, Sept. 3, 2020 — The high-resolution, 3D-viewing capabilities provided by a new microscopy method from the Korea Advanced Institute of Science and Technology (KAIST) could lead to insights into nonalcoholic fatty liver disease (NAFLD), a condition in which too much...
Photonic Chip Gives Raman Spectroscopy a Downsize
COLLEGE STATION, Texas, Sept. 3, 2020 — Researchers at Texas A&M University have invented a technology that can drastically downsize the apparatus used for Raman spectroscopy. “Raman benchtop setups can be up to a meter long depending on the level of spectroscopic resolution...
Structural Color Production Process Supports Soft Photonics Applications
LUXEMBOURG, Sept. 3, 2020 — By coating droplets of an aqueous solution of hydroxopropyl cellulose with silica nanoparticles, and placing these “liquid marbles” inside an organic solvent, scientists have successfully made and displayed structural colors from...
Cough-Recognition Camera Distinguishes Sounds Based on Deep Learning
DAEJEON, South Korea, Sept. 2, 2020 — The Korea Advanced Institute of Science and Technology (KAIST) and SM Instruments have developed a deep learning-based cough-recognition model that recognizes cough sounds in real time, and a camera that can track and record the sound of coughing...
Flexible Micro-LEDs May Reshape Future of Wearable Technology
DALLAS, Sept. 2, 2020 — Researchers from the University of Texas at Dallas and their international colleagues have developed a method to create micro-LEDs that can be folded, twisted, cut, and stuck to different surfaces. The technology aims to fill a demand for bendable,...
Infrared Spectroscopy Moves to the Fast Lane
TOKYO, Sept. 2, 2020 — Researchers at the University of Tokyo have developed a technique to drastically increase the speed of infrared spectroscopy. The technique, called time-stretch infrared spectroscopy, surpasses dual-comb spectroscopy nearly 10× over. The...
Lasers Allow Mass-Producible Microscopic Robots to Walk
ITHACA, N.Y., Sept. 1, 2020 — A collaboration led by Cornell University has created microscopic robots with semiconductor components that allow them to be controlled and made to walk with laser light and standard electronic signals. The robots are roughly the size of a...
Stanford Scientists Trap and Redirect Light with Resonant Nanoantennas
STANFORD, Calif., Sept. 1, 2020 — Researchers in the lab of professor Jennifer Dionne at Stanford University have structured ultrathin silicon chips into nanoscale bars to resonantly trap light, and then release or redirect it later. “We’re essentially trying to trap...
True Holographic Movie Within Reach
TOKYO, Sept. 1, 2020 — It’s been 43 years since audiences heard those famous words “Help me, Obi-Wan Kenobi. You’re my only hope” from a hologram projection in the first Star Wars film, yet true holographic movies, like the one R2-D2 projected of...
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...
Miniaturized Modulator Increases Potential of Photonic Integrated Circuits
ROCHESTER, N.Y., Aug. 31, 2020 — Photonic integrated circuits promise greater speed, bandwidth, and efficiency than traditional electrical circuits, but they’re not yet small enough to be used broadly in computing and other applications. To achieve energy efficiency and...
Raman Spectroscopy Adapted for Hazardous Material Sites
DALLAS, Aug. 31, 2020 — A new Raman spectroscopic system designed by Jacobs and IS Instruments is able to detect a weak laser signal even when located meters away from a target. The system increases safety and lowers cost when used to detect hazardous materials, such as...
Two-Photon Comb Technique Supports 20-km Distribution for Quantum Communication
YOKOHAMA, Japan, Aug. 31, 2020 — In telecom networks connected by fiber optic cable, transmitted photons tend to be absorbed by the material that comprises the cable after traveling just a few kilometers. To prevent the signal from deteriorating, repeaters are placed at regular...
AIM Photonics’ New CEO Sets Course for US Leadership in the Integrated Photonics Industry
ROCHESTER, N.Y., Aug. 28, 2020 — No one can accuse Michael Cumbo, the new CEO of AIM Photonics, of being risk-averse. In the middle of a pandemic that has had most of us working from home, he left the Bay Area and an executive position at ZYGO Corp. to drive across the country to...
Perovskite Study Correlates Phase Transition and Photoluminescence
CLEMSON, S.C., Aug. 28, 2020 — Three research teams at Clemson University joined forces to study the phase transition in nanocrystal (NC) perovskites and the correlation between phase transition and photoluminescence (PL). The researchers studied NCs that included chlorine...
Researchers Demonstrate Cost-Effective, Scalable Lithium PICs
CAMBRIDGE, Mass., Aug. 28, 2020 — A joint effort from HyperLight and Harvard University has achieved a technical milestone for lithium niobate photonic integrated circuits (PICs). According to the researchers, this is the first time high-performance lithium niobate PICs have been...
Industrial Laser Generates Attosecond Light
ORLANDO, Fla., Aug. 27, 2020 — Researchers at the University of Central Florida (UCF) showed that industrial-grade lasers can be used to generate attosecond pulses. “One of the main challenges of attosecond science is that it relies on world-class laser facilities,”...
Mesoscale Photonic Method Increases Range of Optical Tweezers
TOMSK, Russia, Aug. 27, 2020 — A team from Tomsk Polytechnic University (TPU), working with scientists from the V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences, has increased the operation range and stability of optical...
3D Imaging Tool Can Aid in COVID-19 Diagnoses
NEW ORLEANS, Aug. 26, 2020 — Scientists at the Louisiana State University School of Medicine (LSU Health New Orleans) showed that 3D segmented digital models of the lungs could provide a way to more clearly evaluate the extent and distribution of COVID-19-related infection in...
Researchers Structure Light with Two Independent Orbital Angular Momenta
LOS ANGELES, Aug. 26, 2020 — Researchers at the University of Southern California (USC) combined twisted light and optical frequency combs to produce a new, dynamic light structure. The Optical Communications Lab at USC had been researching twisted light beams and frequency...
Imaging Platform Could Deliver Specific, Reliable COVID-19 Antibody Testing
IRVINE, Calif., Aug. 25, 2020 — A robust, low-cost imaging platform using lab-on-a-chip technology, created by University of California, Irvine (UCI) scientists, could be available for rapid coronavirus diagnostic and antibody testing by the end of 2020. The 3D-printable, portable...
Raman Spectroscopy Pinpoints Viral RNA in Single Cells
NEW BRUNSWICK, N.J., Aug. 25, 2020 — A new technique for identifying and quantifying viral RNA in living cells, based on surface-enhanced Raman spectroscopy (SERS) and developed by scientists at Rutgers University, can detect minor changes in RNA sequences that could give viruses an...
Optical Frequency Combs Enhance Hyperspectral Imaging
Aug 24, 2020 — An optical frequency comb is an optical source characterized by a spectrum consisting of evenly spaced frequency lines, known as teeth. This Nobel Prize-winning technology has become a reference tool for optical frequency metrology and spectroscopy...
Liquid Crystal Improves Metalens Design
CLEVELAND, Aug. 24, 2020 — An effort led by Federico Capasso of Harvard University and Giuseppe Strangi of Case Western Reserve University is using liquid crystals to improve the reconfigurability of metalenses. This advancement brings the viability of metalenses for...

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