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Research & Technology News
Plasmonics-Based Light Detector Could Support Precision Agriculture
DURHAM, N.C., Nov. 27, 2019 — A new, broad-spectrum photodetector that can be implemented on a single chip has been developed at Duke University. The photodetector spans a range of light frequencies by using on-chip spectral filters created with electromagnetic materials. The camera’s technology is based on plasmonics — the use of nanoscale physical phenomena to trap specific frequencies of light. For their plasmonics-based approach to building a thermal camera with an on-chip filter, professor Maiken Mikkelsen and her team...
Tapered Optical Fiber Performs Multisite Photometry in the Brain
LECCE, Italy, Nov. 26, 2019 — Researchers from Istituto Italiano di Tecnologia (IIT), the University of Salento, and Harvard Medical School have developed a light-based method to capture and pinpoint neural activity in the brain. The new method allows signals from various brain...
Electrode-Water Interface Produces Giant Pockels Effect for a ‘Liquid’ Light Modulator
TOKYO, Nov. 25, 2019 — A new type of light modulator could lead to a better understanding of how the Pockels effect occurs in different types of materials, making it possible to more fully explore its potential in optical applications. A team of scientists at the Tokyo...
Smart Microscope Teaches Itself Settings for Diagnosing Disease
DURHAM, N.C., Nov. 25, 2019 — Engineers at Duke University used machine learning to develop a microscope capable of adapting its lighting angles, colors, and patterns while teaching itself the optimal settings needed to complete a diagnostic task. In a proof-of-concept study,...
Collaborative Work Advances Quantum Sensors for Bio Applications
ROME, Nov. 25, 2019 — A research team at Università degli Studi Roma Tre has shown that quantum light can be used to track enzyme reactions in real time. The researchers developed a setup that allowed them to control the light at the level of a single photon. This made...
Event Reconstruction System Uses Smartphone Video to Locate Shooters
PITTSBURGH, Nov. 25, 2019 — A system that can accurately locate a shooter based on video recordings from as few as three smartphones has been developed by researchers at Carnegie Mellon University. The system, called Video Event Reconstruction and Analysis (VERA), uses machine...
Liquid Crystal Microlenses Enable 4D Imaging
NANJING, China, Nov. 25, 2019 — Researchers from Nanjing University have developed a portable, inexpensive, and easy-to-use microlens to acquire 4D images. 4D imaging provides 3D resolution as well as polarization information. Wei Hu, Yan Qing Lu, and colleagues used liquid...
Scientists Make Vampire Bats Glow to Simulate Vaccine Spread
ANN ARBOR, Mich., Nov. 26, 2019 — University of Michigan scientists and their colleagues used glowing fluorescent gel to test the potential effectiveness of vaccines to control rabies and other diseases in wild bats. The study, originally published in the journal Nature Ecology...
Microscope Lens Innovation Enables Simultaneous Imaging
THUWAL, Saudi Arabia, Nov. 21, 2019 — Researchers from King Abdullah University of Science and Technology (KAUST) have designed a microscope lens that is able to take both quantitative phase images and bright-field images in a single measurement. Under the supervision of professor...
The Relightables System Captures Character Lighting for Virtually Any Environment
MOUNTAIN VIEW, Calif., Nov. 21, 2019 — Computer scientists at Google have developed a system for high-quality, relightable performance capture. The volumetric capture system, called The Relightables, can capture full-body reflectance of 3D human performances and seamlessly blend them...
Purdue Teams Unravel Mysterious Mediterranean Island
Nov 21, 2019 — Researchers from Purdue University’s College of Liberal Arts (CLA) and Lyles School of Civil Engineering have teamed up to explore the geography and artifacts from Dana Island, located off the southern coast of Turkey. The initiative follows the...
Photonic Accelerator Could Increase Computation Speed and Efficiency
HAMAMATSU, Japan, Nov. 19, 2019 — A new photonic integrated circuit device, developed by researchers in Japan, can be placed at the front end of a digital computer and optimized to perform specific functions with less power consumption than is needed for fully electronic devices....
Terahertz Laser Generated with Laughing Gas
CAMBRIDGE, Mass., Nov. 18, 2019 — Researchers from Massachusetts Institute of Technology (MIT), Harvard University, and the U.S. Army have built a compact device able to produce a terahertz laser that can be tuned over a wide range. The device was built with commercial off-the-shelf...
Photonic Cluster States Generated at Room Temps for Quantum Computation
KONGENS LYNGBY, Denmark, Nov. 18, 2019 — To observe quantum phenomena on a macroscopic scale, researchers at the Center for Macroscopic Quantum States (bigQ) and the Technical University of Denmark (DTU) created an extremely entangled quantum state, called a cluster state. The team’s...
Ghost Imaging Captures Clear Reconstructions of Moving Objects
CHANGSHA, China, Nov. 18, 2019 — Researchers at the National University of Defense Technology (NUDT) have used ghost imaging to capture an image of a moving object. The new method, which creates clear reconstructions by combining information found in the blurry images of a moving...
Search and Rescue May See Help from Swarms of Tiny Drones
DELFT, Netherlands, Nov. 15, 2019 — Researchers from Delft University of Technology demonstrated a swarm of tiny drones equipped with optical sensors that can explore unknown environments completely by themselves. The concept, inspired by insect swarms, relies on numerous inexpensive...
2D Material for Photodetectors Is Less Costly, More Sensitive Than Gold
PHILADELPHIA, Nov. 15, 2019 — Researchers at Drexel University are using MXene, a 2D transition metal carbide (Ti3C2), to fabricate photodetectors with improved sensitivity for substantially less cost. The researchers replaced gold, typically used in the fabrication of...
Inexpensive, Portable System Expands OCT's Reach in the Body
DURHAM, N.C., Nov. 15, 2019 — Researchers from Duke University have developed a way to use optical coherence tomography (OCT) in hard-to-reach areas of the body such as joints. The method may allow the technique to see use in further surgical and medical applications. The...
Interactive Hologram Uses Ultrasound Waves and LEDs
SUSSEX, England, Nov. 15, 2019 — Researchers at the University of Sussex have built a device that uses LEDs and ultrasound waves to levitate a polystyrene bead and create tactile, 3D holograms. The device, known as a Multimodal Acoustic Trap Display (MATD), maneuvers the 2 mm-wide...
Researchers Explore How Light Affects Circadian Rhythms in Insects
IRVINE, Calif., Nov. 14, 2019 — University of California, Irvine (UCI) researchers have explored how UV, blue, and red light affect the central brain neurons that allow circadian clock timing to be reset. The researchers found that blue and UV light create a sustained light...
Trapped Light in Anisotropic Cavities Could Lead to Optoelectronic Advancements
WARSAW, Poland, Nov. 14, 2019 — A research collaboration from Poland, the United Kingdom, and Russia has created a two-dimensional system in which they trapped photons. The system, a thin optical cavity filled with liquid crystal, was modified with an external voltage that caused...
Dairy Quality Check from Fraunhofer Delivers Results in Minutes
DRESDEN, Germany, Nov. 13, 2019 — In the project MOLOKO (Multiplex phOtonic sensor for pLasmonic-based Online detection of contaminants in milK), 12 partners from seven countries worked with the German research organization Fraunhofer to devise an expedited and inexpensive test for...
100 Years Ago, Elmer Imes’ Observations Informed a New Understanding of Molecular Physics
Nov 12, 2019 — One hundred years ago this month, physicist Elmer Imes published his dissertation, “Measurements on the Near-Infrared Absorption of Some Diatomic Gases,” in Astrophysical Journal. The paper provided the scientific world with the first...
Raman Scattering Helps Ensure Safety of Stem Cell Therapies
NEW BRUNSWICK, N.J., Nov. 12, 2019 — A research team at Rutgers University has developed a biosensor technology that could benefit applications for the treatment of neurological disorders through stem cell therapy. The hybrid biosensing platform consists of an array of ultrathin...
Metasurfaces Enable Low-Loss Integrated Photonics Platform
NEWARK, Del., Nov. 12, 2019 — A University of Delaware (UD) research team has designed an integrated photonics platform using metasurfaces. To limit the loss of data, the team fabricated a high-contrast transmitarray (HCTA)-based metalens on a silicon-based chip programmed with...
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