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Light Sources News
For Quantum Computing, New Hardware Platform Based on 2D Materials
PHILADELPHIA, Feb. 13, 2019 — To harness the capability of quantum computing, hardware must be developed that can access, measure, and manipulate individual quantum states. In response to this need, researchers at the University of Pennsylvania have demonstrated a new hardware platform based on isolated electron spins in a 2D material. The electrons are trapped by defects in sheets of one-atom-thick semiconductor material (hexagonal boron nitride, or h-BN).
Collaborators Develop an Ultra Quiet Laser, with Chip-scale Applications
SANTA BARBARA, Calif., Feb. 11, 2019 — Researchers at University of California, Santa Barbara and their collaborators at Honeywell, Yale, and Northern Arizona University have developed a chip-scale laser capable of emitting light with a fundamental linewidth of less than 1 hertz (Hz)...
Data-Driven Spectroscopy Has Potential to Speed Development
ESPOO, Finland, Feb. 1, 2019 — Artificial Intelligence for Spectroscopy (ARTIST) is a new approach to spectroscopy that uses artificial intelligence (AI) to accelerate the spectroscopic analysis of materials and discovery of new molecules or materials. ARTIST was developed by...
Researchers Demonstrate Fractal Light from Lasers
JOHANNESBURG, South Africa, Jan. 31, 2019 — A team from the University of the Witwatersrand (Wits) and the University of Glasgow has demonstrated that fractal light can be created from a laser, verifying a prediction made roughly two decades ago. The researchers provide experimental evidence...
UA Project to Provide Interdisciplinary Access to Quantum Resources
TUCSON, Ariz., Jan. 30, 2019 — University of Arizona (UA) researchers are building a shared research and training instrument to help scientists in diverse fields benefit from quantum resources, including those with no expertise in quantum information science. Professor Zheshen...
Optical Microscopy System Observes, Stimulates Multiple Living Cells
KOBE, Japan, Jan. 30, 2019 — A new optical microscope uses holographic techniques to stimulate multiple cells simultaneously and monitor cell activity after stimulation. Developed by researchers at Kobe University and called SIFOM for three-dimensional (3D) Stimulation and...
All-Photonic Quantum Repeaters Could Lead to Faster, More Secure Quantum Internet
TORONTO, Jan. 29, 2019 — Researchers at the University of Toronto are working to address the challenges of transmitting quantum information securely over great distances using optical fiber communication. They have developed a prototype for a key element for all-photonic...
Lens-Free, Multicolor Holography Technique Could Enable Compact 3D Displays
DURHAM, N.C., Jan. 28, 2019 — A holography technique based on computer-generated holograms (CHGs), developed by a team at Duke University, produces complex, multicolor holographic images without any bulky optical components. The researchers encoded a multicolor image onto a 300-...
Photomultiplier Tubes from Brown Team Will Be the 'Eyes' of New Dark Matter Detector
PROVIDENCE, R.I., Jan. 25, 2019 — Brown University researchers have assembled two arrays of photomultiplier tubes (PMTs) to serve as the “eyes” for the LUX-ZEPLIN (L-Z) dark matter detector, which will begin its search for dark matter particles at the Sanford Underground Research...
Photoacoustic Approach Uses Lasers to Send Messages
LEXINGTON, Mass., Jan. 25, 2019 — Researchers from the Massachusetts Institute of Technology’s Lincoln Laboratory have demonstrated two laser-based methods to transmit various audio tones and recorded speech at a conversational volume to a person without any type of receiver...
UV-Powered Fluid Pump Could Move Pollutants, Deliver Drugs
STATE COLLEGE, Pa., Jan. 23, 2019 — A highly controllable method that uses UV light to control particle motion and assembly within liquids could be used in drug delivery, chemical sensors, and fluid pumps. Developed by the Sen Lab at Pennsylvania State University, the new technique...
Sensor Uses AI to Obtain Real-Time Images from Satellite Orbit
TOKYO, Jan. 22, 2019 — Researchers at Tokyo Institute of Technology (Tokyo Tech) have developed a low-cost star tracker and Earth sensor. The star tracker will be used with microsatellites to handle calibration observations, operation verification tests, and long-term...
Next-Gen Semi Materials Could Be a Boost for Photovoltaics, Lighting
ATLANTA, Jan. 17, 2019 — Next-generation semiconducting materials have the potential to transform lighting technology and photovoltaics, suggest researchers from the Georgia Institute of Technology (Georgia Tech), in a study of the unusual physics behind hybrid...
Engineers Perform Computational Logic with Optical and Electrical Signals
TOKYO, Jan. 16, 2019 — In work that could help advance low-power, high-performance computer chips, researchers at the University of Tokyo and RIKEN have employed UV light and electric fields to perform logic operations with a chemical device. The use of electric fields...
Directed Currents Generated at THz Frequencies Are Higher Than Current Clock Rates
BERLIN, Jan. 16, 2019 — Researchers at the Max Born Institute (MBI) generated directed electric currents at terahertz (THz) frequencies from light absorbed in semiconductor crystals. According to the researchers, this is a much higher frequency than the clock rates of...
Strain Engineering Produces Highly Stable Light From Individual QDs
LOS ALAMOS, N.M., Jan. 15, 2019 — New research at Los Alamos National Laboratory suggests that asymmetrically strained colloidal quantum dots (QDs) can provide stable, blink-free light emission comparable with the light produced by QDs made through more complex processes. The...
New Additive Manufacturing Method Uses Light to Prevent Resin From Curing Against Vat
ANN ARBOR, Mich., Jan. 14, 2019 — A new approach to 3D printing uses two-color irradiation of resin formulations that contain a photoinitiator and a photoinhibitor to perform vat-printing up to 100 times faster than conventional 3D printing processes, according to a team of...
Engineered Light Could Improve Health, Boost Food Production
ALBUQUERQUE, N.M., Jan. 14, 2019 — According to researchers at Sandia National Laboratories, lighting based on LEDs is not only more energy efficient can be used both as a signal for specific physiological responses in humans and plants, and as an efficient fuel for fresh food...
Holographic Color Prints Combine Phase and Amplitude Control of Light for Better Optical Security
SINGAPORE, Jan. 10, 2019 — A new optical anticounterfeiting device, called “holographic color prints” by its developers at the Singapore University of Technology and Design (SUTD), provides a dual function to increase security and deter counterfeiting. The device creates...
Top SPIE Optics Award Goes to RMIT Physicist
MELBOURNE, Australia, Jan. 9, 2019 — The International Society for Optics and Photonics (SPIE) has announced Min Gu as the 2019 recipient of the Dennis Gabor Award in Diffractive Optics, an award named in honor of the Nobel-winning inventor of holography, Dennis Gabor. Professor Gu is...
RIT Team Is Developing Computer Vision Technology to Improve Aerial Tracking
ROCHESTER, N.Y., Jan. 9, 2019 — Researchers at Rochester Institute of Technology (RIT) are developing a visual tracking system to more accurately locate and follow moving objects under surveillance. Using deep learning, the system could generate more reliable readings of moving...
Light Is Dynamically Controlled in a Programmable Electro-Optic System
CAMBRIDGE, Mass., Jan. 9, 2019 — An integrated photonics platform that can store light and electrically control its frequency in an integrated circuit is the newest development from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). According to the...
Stevens Researcher Receives NSF CAREER Award to Develop Portable Solar Panels
HOBOKEN, N.J., Jan. 8, 2019 — Stephanie Lee, an assistant professor at Stevens Institute of Technology, was awarded a 2019 CAREER Award by the National Science Foundation to fund her research in engineering green, portable, cost-efficient solar panels and other power sources....
Pure Graphene Generates Photocurrent Over Great Distances
RIVERSIDE, Calif., Jan. 8, 2019 — An international research team has discovered a new mechanism for ultra-efficient charge and energy flow in pristine graphene. The team was co-led by professor Nathaniel Gabor from the University of California, Riverside. The researchers fabricated...
Optogenetics Device Offers Stable Way to Treat Bladder Problems
ST. LOUIS, Mo., Jan. 7, 2019 — A tiny, implantable device has been created that can detect overactivity in the bladder and use light from biointegrated LEDs to tamp down the urge to urinate. The device has been demonstrated in laboratory rats and could one day be used to treat...
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