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Research & Technology News
2D Semiconductors Preserve Excitons, Explored for Integrated Nanophotonics
SEATTLE, Feb. 24, 2016 — Combining two different ultrathin semiconductors — each just one layer of atoms thick — creates a 2D heterostructure with potential uses in clean energy and optically active electronics. University of Washington scientists have created a system to study the special properties of these atomically thin layers and their potential to answer basic questions about physics, as well as to advance electronic and photonic technologies. Courtesy of Kyle Seyler, Pasqual
Nanoscale Device Adapts Filtering Properties When Stretched
ADELAIDE and MELBOURNE, Australia, Feb. 23, 2016 — A stretchable nanoscale device that can filter specific colors while remaining transparent may one day be used in smart contact lenses to filter harmful optical radiation, transmit data and gather information. Rendering of nanoscale glass structures...
NASA to Launch Wide-Field IR Survey Telescope
WASHINGTON, D.C., Feb. 23, 2016 — NASA’s Agency Program Management Council has announced the decision to move forward with the Wide Field Infrared Survey Telescope (WFIRST), a six-year mission set to launch from Cape Canaveral, Fla., in the mid-2020s. WFIRST is the agency's...
Plasmonic Interferometry Could Enable Compact Bio-, Environmental Sensors
PROVIDENCE, R.I., Feb. 22, 2016 — A nanoscale plasmonic interferometry system that eliminates the need for an external coherent light source could enable accurate and compact bio- and environmental sensors. In the device, fluorescent light-emitting atoms were integrated directly...
2016 Prism Awards Honor Nine Outstanding Photonics Innovations
SAN FRANCISCO, Feb. 19, 2016 — Nine innovations from across the globe took center stage last month at Prism Award ceremonies at SPIE Photonics West. While their applications ranged widely — from medical diagnostics to astronomy to 3D printing — the technologies all...
Optogenetic Immunomodulation Reduces Cancer Tumor Size, Metastasis in Animal Model
COLLEGE STATION, Texas, Feb. 19, 2016 — Optogenetics has been modified for an immunotherapeutic approach that aims to kill cancerous tumor cells. Neuroscientists have used light to stimulate neurons for years, said professor Yubin Zhou of Texas A&M University’s Health Science...
FS Lasers Explored for Presbyopia Treatment
HANNOVER, Germany, Feb. 18, 2016 — A femtosecond laser-based method for treating presbyopia — farsightedness caused by by loss of elasticity of the lens of the eye — eliminate patients’ need for reading glasses. A virtual model of the technique — called...
UTA Engineer Tapped for $500K NSF Grant
ARLINGTON, Texas, Feb. 18, 2016 — The National Science Foundation (NSF) has awarded a University of Texas at Arlington electrical engineer with a five-year, $500,000 grant to develop an optofluidic laser for better disease detection. Assistant professor Yuze “Alice” Sun...
Plasmon Etching Technique Produces Ultrathin Flat Optics
CHAMPAIGN, Ill., Feb. 17, 2016 — A simplified approach for producing flat, ultrathin optics foregoes acids and other hazardous chemical etching agents. The method could enable do-it-yourself (DIY) optics, particularly those related to low-cost microcontroller boards. The process...
Robust Technique Demonstrated for Ghost-Imaging in the Time Domain
TAMPERE, Finland, Feb. 15, 2016 — A technique for producing ghost-imaging in the time domain offers promise for the dynamic imaging of ultrafast waveforms with applications in communications, remote sensing and ultrafast spectroscopy. Researchers from the Tampere University of...
Interferometric Systems Detect Gravitational Waves
LIVINGSTON, La., and HANFORD, Wash., Feb. 12, 2016 — The observation of gravitational waves — described as ripples in the fabric of spacetime — arriving at the earth confirms a major prediction of Albert Einstein’s 1915 general theory of relativity. The gravitational waves were...
Basi Awards Three Sampling Systems for Full Animal Response Profiles
WEST LAFAYETTE, Ind., Feb. 12, 2016 — Pharmaceutical development company Bioanalytical Systems Inc. (Basi) has awarded three of its Raturn Swivel-Free Sampling Systems to researchers who will integrate in vivo optogenetic techniques with data collection techniques for full response...
Photon-Based Heat Transport May Advance Quantum Computing
AALTO, Finland, Feb. 11, 2016 — A thermal-transport method that uses photons as carriers has been demonstrated over 1-m distances. The fundamental advance in heat conduction could drive the development of quantum computers. Artistic rendering of quantum-limited heat conduction of...
Far-Infrared Technique Noninvasively Measures Blood Glucose
TOHOKU, Japan, Feb. 10, 2016 — A light-based method for measuring blood glucose may give diabetes patients the daily monitoring they need without the pain and infection risk of conventional metering. Researchers from Tohoku University's Graduate School of Biomedical Engineering,...
Camera Overcomes Redshift for Astronomical Imaging
BERKELEY, Calif., Feb. 9, 2016 — Upgraded light sensors have enabled a camera to image outer space at red wavelengths that are too red for the human eye to see. Star trails take shape around Kitt Peak National Observatory in this long-exposure image. The 4-m Mayall Telescope...
Optical Nanomodulator Produces Truly Digital Signals
ZURICH, Feb. 9, 2016 — Responding to the rapidly rising rate and volume of data, an optical modulator that operates at the individual-atom level could both reduce the size of and increase the efficiency of communication networks. The switch is based on the voltage-induced...
Wasp-Inspired Needle Could Advance Spectroscopy for Disease Detection
LONDON, Feb. 8, 2016 — A robotic surgical system inspired by the anatomy of wood-boring wasps could be used in Raman spectroscopy to detect cancerous and diseased tissue. The wasp-inspired robotic needle is bendable, enabling it to access hard-to-reach areas deep in...
Silicon Metamaterials Hold Promise for Photonic Circuits, Chips
WEST LAFAYETTE, Ind., Feb. 5, 2016 — As data transmission technology seeks miniaturization, all-diaelectric, a silicon-based metamaterials may offer the necessary control of light through achievement of total internal reflectance. Researchers from Purdue University seek to engineer...
Label-Free Virus Detection Method Integrates Optical Microscope, Fiber
JENA, Germany, Feb. 4, 2016 — A label-free technique has demonstrated the ability to detect freely diffusing viruses smaller than 20 nm. Although existing methods for detecting viruses such as confocal or fluorescence microscopy — which generally involve fixation and...
Transmitter Converts Electronic to Optical Signals
VILLARCEAUX, France, Feb. 4, 2016 — A bandwidth variable transmitter (BVT) that converts electronic signals to optical signals and featuring works without service interruptions, an advantage known as being "hitless." The transmitter’s bandwidth can also be adjust for varying...
LZH Launches 3 Hybrid Numerical Optics Research Projects
HANOVER, Germany, Feb. 3, 2016 — Nonprofit research institute Laser Zentrum Hannover e.V. (LZH) is working on three subprojects in the new research priority, Hybrid Numerical Optics, of the Hannover Centre for Optical Technologies (HOT) at Gottfried Wilhelm Leibniz University...
NASA to Build Integrated Photonics Modem for Laser Communications
GREENBELT, Md., Feb. 3, 2016 — An integrated photonics modem will be tested aboard the International Space Station beginning in 2020 as part of NASA’s multiyear Laser Communications Relay Demonstration (LCRD). The cell phone-sized device incorporates optics-based functions,...
Self-Assembling Fabrication Method Offers Alternative to Photolithography
CAMBRIDGE, Mass., Feb. 2, 2016 — Block copolymers — molecules that spontaneously self-assemble into useful shapes — are a promising alternative to photolithography techniques for manufacturing nanoscale circuits. Researchers from the Massachusetts Institute of...
Triplet Exciton Energy Transfer Extends Lifetime
RALEIGH, N.C., Feb. 1, 2016 — A demonstration of the transfer of triplet exciton energy from semiconductor nanocrystals to surface-bound molecular acceptors has extended the lifetime of the originally prepared excited state by six orders of magnitude. The finding has...
Flexible Polymer Offers Tunable Transparency
CAMBRIDGE, Mass., Jan. 29, 2016 — An experimental, rubber-like polymer structure has been used to model predictions of material transparency based on thickness and degree of structure. The material and predictive model could enable inexpensive materials for smart windows and other...
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