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nanophotonics News
Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication
GAITHERSBURG, Md., March 1, 2019 — A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers. However, the optical components that store and process quantum information typically require visible-light photons to operate — and only near-infrared (NIR) photons have wavelengths that are long enough to transport quantum information over several kilometers of optical fibers.
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...
IR Image Encoding and Camouflage System Uses Plasmonics to Hide Images from Naked Eye
ORLANDO, Fla., Dec. 22, 2018 — Using a plasmonic nanostructure, researchers at the University of Central Florida (UCF) have devised a way to hide information on the surface of a material, so that it is only visible through an IR lens or camera that is tuned to the correct IR...
Wireless-to-Optical Receiver Could Speed Data Transmission Over 'last mile'
ZÜRICH, Nov. 28, 2018 — While light waves sent through optical fibers support fast data transmission, the “last mile,” from the fiber optic cable to the internet socket in your home, can be the most challenging and expensive leg of the journey. In the future a new light...
Photodetector Mimics Directional Hearing in Small Animals
PALO ALTO, Calif., Nov. 2, 2018 — Researchers from Stanford University have drawn from nature — specifically, the ear structure of the gecko — to devise a subwavelength photodetection pixel that can measure both the intensity and incident angle of light. Geckos and many...
Miniaturized Optical Gyroscope Reduces Thermal Fluctuations
PASADENA, Calif., Oct. 29, 2018 — Caltech engineers have created an optical gyroscope that is 500 times smaller than the current state-of-the-art miniature fiber-optic device, yet able to detect phase shifts that are 30 times smaller than those systems. Gyroscopes — devices...
Directional Character of Nanolight Could Improve Efficiency of Nanophotonic Devices
MELBOURNE, Australia, Oct. 26, 2018 — Squeezed light in the nanoscale (“nanolight”) was found to propagate only in specific directions along thin slabs of molybdenum trioxide (α-MoO3), a natural anisotropic 2D material. The discovery was made by an international team...
Deep Learning Approach Streamlines the Design of Metamaterials
TEL AVIV, Israel, Oct. 24, 2018 — A technique for streamlining the process of designing and characterizing nanophotonic metamaterials, based on deep learning, could make the design, fabrication and characterization of these elements easier. A Tel Aviv University team has shown that...
Tunable Laser Light Sources Advance Nanophotonics Research
Sep 28, 2018 — A considerable part of contemporary photonics research that investigates the interaction of light with nanoscale objects — nanophotonics — is motivated by the commercial potential of real-world devices. A vast number of experimental...
Enhanced Photosensors Exploit Wavelength-Shifting Properties of Nanoparticles
LEMONT, Ill., Sept. 14, 2018 — Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory are using nanotechnology to improve the ability of photodetectors to handle the UV radiation produced in high-energy physics experiments. Physicists explore basic...
Photoelectrode Traps, Converts Light Efficiently
SAPPORO, Japan, Sept. 10, 2018 — A photoelectrode developed by a team at Hokkaido University harvests visible light across a wide spectral range using a semiconductor titanium dioxide (TiO2) layer sandwiched between gold film (Au film) and gold nanoparticles (Au NPs). A key feature...
Ultrathin Optical Cavities Could Streamline, Enhance On-a-Chip Color Production
WEST LAFAYETTE, Ind., Aug. 20, 2018 — A Purdue University-led research team has simplified the manufacturing process that allows utilizing multiple colors at the same time on an electronic chip. By embedding silver metasurfaces -- artificial materials thinner than light waves -- inside...
Tunable Laser Light Sources Advance Nanophotonics Research
Jul 26, 2018 — A considerable part of contemporary photonics research that investigates the interaction of light with nanoscale objects — nanophotonics — is motivated by the commercial potential of real-world devices. A vast number of experimental studies call for...
Single-Photon Source Could Help Secure Quantum Data
SHEFFIELD, England, July 18, 2018 — Researchers have found a way to generate very rapid single-photon light pulses, a discovery that could be used to secure quantum data transfer. Single-photon pulses offer data security, because any attempt to intercept the data can be detected...
Light Mixer Generates 11 Colors Simultaneously
ALBUQUERQUE, N.M., July 2, 2018 — An optical frequency mixer has been developed that uses a novel nanostructured metamaterial to concurrently generate 11 different colors of light. The metamaterial is made from an array of gallium arsenide (GaAs) nanocylinders. Each nanocylinder is...
Plasmonic Antennas Could Deliver Ultrafast Pulses for THz Electronics
MUNICH, Germany, June 28, 2018 — In an experiment that combined the advantages of femtosecond nanophotonics with on-chip communications, researchers generated ultrashort electric pulses on a chip using metal structures (i.e., antennas) only a few nanometers in size, then ran the...
Light-Harvesting Membranes Heat, Desalinate Water in One Step
HOUSTON, June 27, 2018 — A Rice University-led team will conduct further development and field testing of a desalination technology that uses nanoparticles and sunlight to treat water, with help from a $1.7 million grant from the Department of Energy (DOE). The technology,...
Carbon Nanotubes Emerge as Potential Quantum Light Sources
LOS ALAMOS, N.M., June 25, 2018 — Researchers report on the potential of carbon nanotubes as single-photon emitters for quantum information processing. A team at Los Alamos National Laboratory (LANL) is collaborating with colleagues at CNRS (The French National Center for Scientific...
Scientists Discover Light, Gold Thin Films Interaction
ATLANTA, June 5, 2018 — Physicists have devised a way to determine the electronic properties of thin gold films after they interact with light, a discovery that could further scientific understanding of how light affects materials. When the energy of a photon is...
AI Learns How to Approximate Light Scattering to Speed Inverse Design
CAMBRIDGE, Mass., June 4, 2018 — A computational neural network (a form of artificial intelligence) was able to learn how a multilayered nanoparticle scatters light by learning the relationship between the nanoparticle’s structure and its behavior, based on thousands of...
Researchers Demonstrate Active Nanoantennas Based on Diamond Nanoparticles
SAINT PETERSBURG, Russia, May 16, 2018 — A controlled light source has been developed that is based on a nanodiamond. According to researchers, experiments showed that the diamond shell could double the emission speed of light sources and could help control light sources without additional...
Engineered Glass Slide Enables Microscopic Thermal Mapping
BUFFALO, N.Y., May 15, 2018 — Using a coating of an optical exceptional point structure, researchers demonstrated a multifunctional microscope slide that supports real-time monitoring and mapping of temperature distribution and heat transport, in addition to conventional...
Squeezed Light Confined to Space of One Atom in Nanophotonics Advance
BARCELONA, Spain, April 25, 2018 — Using graphene, researchers have found a way to confine light down to a space that is one atom thick. The ability to confine light to such a small space could pave the way for ultrasmall optoelectronic devices. Previous work has shown that while...
Whispering Gallery for Light Boosts Solar Cell Absorption and Photocurrent
GAITHERSBURG, Md., April 18, 2018 — Researchers have developed a nanoscale coating for solar cells that enables the cells to absorb about 20 percent more sunlight than uncoated devices. The coating, developed by trapping light using an optical version of a whispering gallery, could...
Gaining Nanoscale Control over Quantum Systems
OAK RIDGE, Tenn., April 9, 2018 — Scientists at Oak Ridge National Laboratory (ORNL) and Vanderbilt University have developed methods to help control the “leaky,” dissipative behavior inherent in quantum systems and materials. To do so, they examined the quantum nature...
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