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Education News
Graphene-Based Absorbers Could Enable Ultrafast Lasers in THz Range
MODENA, Italy, Sept. 15, 2017 — A terahertz (THz) saturable absorber has been created using printable graphene inks produced by liquid phase exfoliation (LPE) and deposited by transfer coating and ink jet printing. A THz saturable absorber, which decreases the absorption of light in the THz range, could enable the development of ultrafast lasers in the THz range. Such lasers could be useful in applications where short time scale excitation of specific transitions is important, such as time-resolved spectroscopy of gasses and
Device Allows Standard Cameras to Produce Hyperspectral Images
BEER-SHEVA, Israel, Sept. 14, 2017 — A miniaturized hyperspectral device has been developed as an add-on for a standard camera, and could be used to repurpose a camera for generating hyperspectral images and videos for a range of applications. Developers of the device used compressive...
Cloaking Approach Prevents Light Scattering in Opaque Objects
VIENNA, Sept. 14, 2017 — In a novel approach to cloaking technology, researchers irradiated an opaque material from above, using a specific wave pattern that allowed light waves from the left to pass through the material without any obstruction. The researchers believe that...
Nicolaas Bloembergen, Winner of Nobel Prize in Physics, Dies at 97
TUCSON, Ariz., Sept. 13, 2017 — Dutch-born optics pioneer and Nobel Prize winner Nicolaas Bloembergen died on Sept. 5 in Tucson, Ariz. He was 97. The cause of death was cardiorespiratory failure. Dr. Bloembergen, who spent more than 40 years at Harvard University, made lasting...
Tunable Nanoparticle Layer Switches Between ‘Mirror,’ ‘Window’
LONDON, Sept. 13, 2017 — Researchers have made a reversible electrotunable filter that can change between a reflective ‘mirror’ and a transmissive ‘window’. This discovery could help scientists create special materials whose optical properties could...
Doppler Lidar Could Aid Weather Forecasting, Aircraft Safety
HEFEI, China, Sept. 12, 2017 — A dual-frequency direct detection Doppler LiDAR system could offer a simplified yet robust way to accurately measure wind speed. The detailed, real-time wind measurements provided by the system could help scientists better understand how hurricanes...
Photoacoustic Imaging Technique Measures Periodontal Health
LA JOLLA, Calif., Sept. 12, 2017 — Using squid ink as a contrast agent for a photoacoustic ultrasound, researchers have developed a dental imaging method for assessing gum health that is non-invasive, comprehensive and accurate. The photoacoustic method can image the entire pocket...
3D Printing Technique Makes Degradable Biomaterials
PROVIDENCE, R.I., Sept. 11, 2017 — A stereolithographic technique has been developed for making 3D printed biomaterials that can undergo controlled degradation. This technique uses non-covalent (ionic) crosslinking and could potentially enable the fabrication of adaptive and...
High-Speed Quantum Memory Retrieves Photons on Demand
BASEL, Switzerland, Sept. 11, 2017 — A quantum memory that offers relatively fast and simple retrieval could someday be used for building a “quantum Internet.” The technology stores photons in a gas of rubidium (RB) atoms and uses a laser to control the storage and...
QUT to Deploy Drones for Koala Protection
BRISBANE, Australia, Sept.11, 2017 — The Queensland University of Technology (QUT) will deploy drones in a high-tech effort to find and protect koalas in South East Queensland, with the state government announcing a funding boost for koala conservation. The two-year project to be led...
Novel STEM for 3D Imaging Improves 3D Visualization of Curvilinear Nanostructures
LAUSANNE, Switzerland, Sept. 8, 2017 — Scientists have developed a scanning transmission electron microscopy (STEM) method that generates fast and reliable 3D images of curvilinear structures from a single sample orientation. This STEM method can acquire images in a single shot, making...
STCC Develops Proposal for Cutting-Edge Photonics Factory
SPRINGFIELD, Mass., Sept. 8, 2017 — In partnership with the Massachusetts Institute of Technology’s AIM Photonics Academy, Springfield Technical Community College (STCC) plans to create a state-of-the-art facility that would represent a step forward in the development of...
Smartphone App Objectively Assesses Brain Injuries in The Field
SEATTLE, Sept. 8, 2017 — A smartphone app that detects concussion and other traumatic brain injuries could be used to determine whether someone — whether a football player, a soldier in battle, or an elderly person who has fallen — should be further assessed for...
M Squared European Researchers Develop Quantum 3D Sensing Devices
GLASGOW, Scotland, Sept. 8, 2017 — Laser developer M Squared is collaborating with teams at the University of Birmingham and Imperial College London to develop devices for measurement and quantum 3D sensing. In the ANAGRAM project, co-funded by Innovate UK and part of the UK National...
Ultrapure Green Light from Perovskite Could Enrich Next-Gen Displays
ZURICH, Sept. 7, 2017 — An ultra-thin LED, as bendable as a sheet of paper and able to emit pure green light, has been developed using nanomaterials and simple room-temperature processes. Until now high-temperature processes have been required to produce pure light using...
2D Material’s High Tunability Could Augment Optoelectronics Applications
BERKELEY, Calif., Sept. 7, 2017 — Research into a 2D material has revealed information about its tunability and band gap, that could help scientists to isolate, enhance and manipulate its most desirable qualities. Potential applications for atomically thin 2D materials range from...
Inlighta Biosciences Receives $2M NIH Grant
ATLANTA, Sept. 7, 2017 — Inlighta Biosciences, a life sciences startup founded by Jenny Yang, a Georgia State University Regents' Professor of Biochemistry, has received a $2 million federal grant to develop improved magnetic resonance imaging (MRI) contrast agents for the...
Optogenetics Used to Control Interorganellar Communication
COLLEGE STATION, Texas, Sept. 6, 2017 — Researchers are using optogenetics to tune communication between organelles within living cells. The optogenetics tools are being used to control the proteins that form the bridge between organelles, and to govern the length of the bridge at the...
European Research Consortium Pursues Chip-Sized Microscope
BARCELONA, Spain, Sept. 6, 2017 — ChipScope, a European research project under the leadership of the University of Barcelona, aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of seven...
Metasurface-Coated Waveguides Reduce Crosstalk
STATE COLLEGE, Pa., Sept. 5, 2017 — Engineers have developed a conformal metasurface coating that can simultaneously control diverse optical properties of dielectric waveguides, including mode confinement, polarization, scattering signature and crosstalk. The two-layer coating can...
Subwavelength THz Could Improve Image Resolution, Accelerate Imaging Speed
EXETER, England, Sept. 5, 2017 — A terahertz (THz) imaging technique that is compatible with adaptive and compressive sensing algorithms has been developed and has demonstrated image reconstruction at highly subwavelength dimensions. Using a near-field approach to THz imaging,...
NSF Grant Supports Baker College Photonics Education
FLINT TOWNSHIP, Mich., Sept. 5, 2017 — Baker College has been awarded a National Science Foundation (NSF) grant of $512,000 to advance photonics and laser education. The goal of the three-year grant is to educate more students to become qualified photonics, laser and fiber optics...
Hogg to Lead MOCVD CST Global Project
GLASGOW, Scotland, Sept. 4, 2017 — Semiconductor foundry CST Global Ltd. has announced that Professor Richard Hogg at the University of Glasgow will lead a project to commission and operate a new metalorganic chemical vapor deposition (MOCVD) machine. The MOCVD machine results from...
Enhancing Sensitivity at Higher-Order Exceptional Points
ORLANDO, Fla., Sept. 1, 2017 — A state of exceptional sensitivity, formed when a third nanoparticle is added to an optical microcavity already containing two light scatterers, is being studied by researchers as the potential basis for a system that could detect objects at the...
Laser Cavity Reveals Fundamental Physics Driving Its Optical Responses
ORLANDO, Fla., Sept. 1, 2017 — The optical response of an externally probed laser cavity was monitored before and after gain clamping to reveal the underlying mechanisms of the cavity’s response. The research provided a unique window into fundamental physics and optical...
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