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education News
Single-Shot Spectrometer Offers Portability, High Resolution
MADISON, Wis., April 12, 2019 — Engineers at the University of Wisconsin-Madison have developed a compact, single-shot, free-space-coupled spectrometer with hyperspectral imaging capabilities that can be integrated with a cellphone. The spectrometer is fabricated on top of and integrated with a CMOS chip. The miniaturized device measures 200 µm on each side and can lie directly on a sensor from a typical digital camera. The team’s spectrometer and hyperspectral imager are based on photonic-crystal (PC) slabs. The device uses...
Spin Lasers Could Transfer Data Faster, Use Less Energy than Conventional Lasers
BOCHUM, Germany, April 11, 2019 — Currently, rapid data transfer via optical fiber is accomplished by transmitting light signals that code data by modulating the light intensity. Due to physical limitations, data transfer that is based on a modulation of light intensity, without...
Object Detection System Separates Range Resolution from Bandwidth Limitations
TEL AVIV, Israel, April 10, 2019 — A new Tel Aviv University (TAU) study investigates an approach to object detection, inspired by OCT, that requires little to no bandwidth to accurately create a high-resolution map of the environment within range of a radar system. The new system...
Compact Laser Detects Greenhouse Gases Using Mid-IR Source
LAUSANNE, Switzerland, April 10, 2019 — A system developed at École Polytechnique Fédérale de Lausanne (EPFL), composed of a standard laser and a photonic chip, uses a mid-infrared light source to detect greenhouse and other gases. The team took a commercially available fiber laser and...
Metamaterials Embedded with Geometrical Optics Could Simplify Optical Devices
MEDFORD, Mass., April 9, 2019 — 3D-printed metamaterials developed by a Tufts University engineering team display properties not found in conventional materials. The fabrication methods used by the team demonstrate how stereolithography-based 3D printers can be used to create 3D...
Light and Sound Interactive to Host Influencers in AR, Gaming, and Photonics
Apr 8, 2019 — The Light and Sound Interactive (LSI) Conference, taking place June 25-27 in Rochester, NY, will connect entrepreneurs, and showcase emerging technologies in the realms of photonics, imaging, and audio. The event will take over the downtown area...
Entanglement-Based QKD Could Secure Optical Fiber Networks
SINGAPORE, April 8, 2019 — A technique that will help pairs of light particles smoothly navigate optical fiber networks was performed over 10 km of Singtel’s fiber network. Researchers from the National University of Singapore (NUS) and Singtel are driving the project...
Photoacoustic Microscopy Used to Image Cancer Cells
PASADENA, Calif., April 5, 2019 — Researchers at the California Institute of Technology (Caltech) are investigating ways in which to better image cancer cells by using photoacoustic microscopy (PAM), a technique that incorporates laser light to induce ultrasonic vibrations, which...
Researchers Control Speed of Light in Free Space
ORLANDO, Fla., April 5, 2019 — Using a technique that someday help alleviate data congestion and prevent information loss, University of Central Florida (UCF) researchers have developed a way to speed up and slow down a light pulse. The new technique allows the speed of the pulse...
Researchers Pinpoint Origin of Photons in Gamma-Ray Bursts
WAKO, Japan, April 5, 2019 — Scientists from the RIKEN Cluster for Pioneering Research and their collaborators have shown that the photons emitted by long gamma-ray bursts (GRBs) originate in the photosphere, that is, in the visible portion of the relativistic jet that is...
In New Material, Color and Thermal Properties Can Be Tuned Separately
CAMBRIDGE, Mass., April 4, 2019 — Researchers at the Massachusetts Institute of Technology (MIT) have optically engineered a polymer material to allow its color and thermal properties to be tailored independently of each other. The new films simultaneously provide light weight,...
New Glass Family Demonstrates High Refractive Index, UV-Shielding Properties
STATE COLLEGE, Pa., April 4, 2019 — A novel composition of germanosilicate glass, created by adding zinc oxide, has properties that could be valuable for lens applications. The new family of zinc germanosilicate glass was invented by a research group at The Pennsylvania State...
Low-Loss, All-Fiber System Supports Coupling Between Distant Atoms
TOKYO, April 3, 2019 — A team of scientists from Waseda University, the Japan Science and Technology Agency, and the University of Auckland developed an integrated, all-fiber coupled-cavities quantum electrodynamics (QED) system, in which a meter-long portion of...
All-Dielectric Nanoantennas Enable Study of Temperature-Mediated Effects
VLADIVOSTOK, Russia, April 3, 2019 — Scientists at Far Eastern Federal University (FEFU) have devised a method for efficiently mass-producing silicon-germanium (Si-Ge) fully alloyed nanoantennas. The electron-beam lithography traditionally used for production is expensive and...
Computational Methods Enable Solid-State Lighting to Self-adjust
BARCELONA, Spain, April 2, 2019 — Researchers from the Catalonia Institute for Energy Research (IREC) and Ledmotive Technologies have developed a two-step approach to generate arbitrary spectral power distributions (SPDs) using multichannel LED engines. This approach could be used...
Particle Cavity Cooling Could Aid Quantum Effects Study
VIENNA, April 2, 2019 — A new method for cooling levitated nanoparticles using optical tweezers, discovered by researchers at the University of Vienna, the Austrian Academy of Sciences, and the Massachusetts Institute of Technology (MIT), could advance scientists’...
Liquid Crystals Could Help Protect Against Laser Pointer Attacks
ROMEOVILLE, Ill., April 1, 2019 — Liquid crystals could someday be used to help deflect laser pointer attacks on aircraft, regardless of the wavelength used in the attack. According to the Federal Aviation Administration, 6,754 laser strikes on aircraft were reported in 2017. The...
Metalens Design Enables Reconfigurable Imaging
EVANSTON, Ill., March 29, 2019 — A Northwestern University research team has developed an imaging platform based on fully reconfigurable metalenses. The lenses focus light by exciting surface lattice resonances that are tuned by patterned polymer blocks on single-particle sites....
Laser-Induced Avalanche Breakdown Detects Radioactive Material Remotely
COLLEGE PARK, Md., March 28, 2019 — A new method to identify radioactive material employs an IR laser beam to detect shielded material from a distance. The method, developed by physicists at the University of Maryland, improves upon current detection technologies that require close...
Open-Source Solution Could Lower Cost of Optical Cardiography
DOLGOPRUDNY, Russia, and WASHINGTON, D.C., March 28, 2019 — An open-source solution for multiparametric optical mapping of the heart’s electrical activity, developed by an international research team, could further understanding of the mechanisms underlying cardiac arrhythmias. The 3D models of the...
Inverse-Designed Metastructures Operate with Light to Perform ‘Photonic Calculus’
PHILADELPHIA, March 27, 2019 — A research team at the University of Pennsylvania has demonstrated a metamaterial device that can function as an analog computer. Such processing typically requires complex systems of bulk optical elements like lenses, filters, and mirrors. The...
Arizona Optics Industry Continues Growth of Optics Valley
TUCSON, Ariz., March 27, 2019 — The Arizona optics industry continues its upward trend with a $500,000 contract awarded to a business consultancy firm that is a member of the Arizona Technology Council, an organization dedicated to growing Optics Valley.
Measuring Quantum Back Action Could Improve Sensitivity of Gravitational-Wave Detectors
BATON ROUGE, La., March 26, 2019 — Researchers at Louisiana State University (LSU) have defined a broadband, off-resonance measurement of quantum radiation pressure noise (QRPN) in the audio band, at frequencies relevant to gravitational-wave detectors. The noise spectrum obtained by...
In a New Quantum Simulator, Light Behaves Like a Magnet
LAUSANNE, Switzerland, March 26, 2019 — When following the laws of quantum mechanics, systems made of many interacting particles can display behavior so complex that they cannot be quantitatively described by even the most powerful computers. In 1981, visionary physicist Richard Feynman...
Portable Photonic Crystal Biosensor Detects, Quantifies HIV in Africa
CAIRO, March 25, 2019 — Two African researchers have combined their laser expertise to develop a device that could improve the quality of treatment and life expectancy of people living with HIV. Sello Manoto, an African Laser Centre grant holder and CSIR Biophotonics...
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