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photonic crystal News
Supercritical Coupling Boosts Photon Upconversion
SINGAPORE, March 4, 2024 — Researchers at the National University of Singapore (NUS) have unveiled a novel concept termed supercritical coupling that enables a several-fold increase in photon upconversion efficiency. This discovery not only challenges existing paradigms, but also opens a new direction in the control of light emission, the team said. Photon upconversion, the process of converting low-energy photons into higher-energy ones, is a crucial technique with broad applications, ranging from superresolution
"Nonlocal" Metasurface Enables High-Performing AR Eyeglasses
NEW YORK, Oct. 4, 2022 — With conventional AR glasses, there is a trade-off in terms of quality and brightness between the external scene that a wearer actually sees and the contextual information that the wearer wants to visualize. Early solutions used multiple bulky...
Hamamatsu to Acquire NKT Photonics
HAMAMATSU, Japan, June 24, 2022 — Hamamatsu Photonics will acquire Danish fiber laser manufacturer NKT Photonics. Hamamatsu will make the acquisition, which the companies expect to close by the end of the first quarter of next year, through its wholly owned subsidiary Photonics...
Microresonator Increases Strength of Light-matter Interactions
AMHERST, Mass., Feb. 7, 2022 — Researchers at the University of Massachusetts Amherst, the University of Maryland, and the National Institute of Standards and Technology (NIST) built an on-chip microresonator that strengthens light-matter interactions without losing optical...
Photonic Crystal Microscope Quickly Detects Biomarkers for P-O-C Diagnostics
URBANA, Ill., Nov. 2, 2021 — A compact photonic resonator absorption microscopy (PRAM) instrument, developed by a team at the University of Illinois Urbana-Champaign, provides fast, selective detection of cancer biomarkers for diagnostics at the point of care. The instrument...
Light-Activated Material Could Enable Heliotropic Solar Cells
MEDFORD, Mass., March 17, 2021 — Light-activated composite devices developed by Tufts University researchers were shown in testing to execute precise visible movements and form complex 3D shapes. The materials performed without wires or other actuating materials or energy sources....
Imaging Without Limit, on Demand
NEW YORK, Feb. 11, 2021 — A team at Columbia University has introduced a way to program a layered crystal in such a way that it is able to open doors to imaging capabilities beyond common limits, on demand. The technique exerts control over nanolight — light that is...
Covesion Relocating to Larger Site
SOUTHAMPTON, England, Feb. 3, 2021 — Covesion Ltd., a spinout company from Stratophase Ltd. and the University of Southampton, is relocating to accommodate the ongoing expansion of its team and the need for more laboratory space. The optical materials company says it plans to move...
Vector Photonics Leads £1.5M Consortium
GLASGOW, Scotland, Jan. 27, 2021 — Vector Photonics is leading the £1.5 million BLOODLINE project, an international consortium project developing PCSEL-based (photonic crystal surface-emitting laser) chips for 3D metal laser printing, funded by Innovate UK. According to a 2019...
Chip-Based Source Creates Entangled Photons 100x More Efficiently
HOBOKEN, N.J., Dec. 21, 2020 — In pursuit of a fast and efficient source of entangled photon pairs necessary for quantum computing and ultrafast communications, researchers from Stevens Institute of Technology have developed a chip-based source capable of producing entangled...
Photron Limited Acquires Photonic Lattice Inc.
TOKYO, Dec. 3, 2020 — Photron Limited, a developer of high-speed imaging technology and subsidiary of the Imagica Group, has acquired all shares of Photonic Lattice Inc. Photonic Lattice develops photonic crystal technologies and solutions for optical telecommunications...
Researchers Devise Method to Observe Atomic Interactions, Quantum Mechanics
PRINCETON, N.J., Nov. 12, 2020 — Researchers from Princeton University have formulated a method to control and measure atoms that are indistinguishable when observed with an optical lens. The work allows the researchers to observe atomic interactions and quantum mechanical...
Optical Moiré Lattices Produce Solitons
SHANGHAI, Oct. 14, 2020 — Researchers from Jiao Tong University discovered that optical moiré lattices can produce solitons — self-trapped solitary waves — at extremely low power levels. The research establishes potential to explore nonlinear phenomena...
Method for Colloidal Diamond Construction Unlocks Long-Coveted and Wide-Ranging Photonic Potential
NEW YORK, Oct. 7, 2020 — Researchers in David Pine’s NYU laboratory have developed and introduced a method for the reliable creation of colloidal diamonds. Using a steric interlock mechanism to spontaneously produce the staggered bonds that make a physical diamond...
Mechanochromic, thermochromic, piezochromic … or just pretty
Sep 1, 2020 — It took nature millions of years to develop the tiny scales that give butterfly wings — which are themselves transparent — their intense coloration. Like peacock feathers, they derive their signature hues from structures rather than...
Photonic Crystal Emits Super-Planckian Thermal Radiation at Optical Wavelengths
TROY, N.Y., March 23, 2020 — Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. But a material that appears to exceed the limits set by Planck’s law has been experimentally...
Topology Protects Light Propagation in Photonic Crystal
AMSTERDAM, March 10, 2020 — A team from the research institute AMOLF and Delft University of Technology (TU Delft) observed light propagation within a photonic crystal without the usual distortion caused by reflections. Because the crystal consists of two parts, each with a...
Electrically Driven Topological Laser Bypasses Manufacturing Imperfections
SINGAPORE, Feb. 19, 2020 — Researchers from Nanyang Technological University (NTU Singapore) and the University of Leeds (UL) have created what they believe to be the first electrically driven topological laser. The new device has the ability to route light particles around...
Trapped Light in Anisotropic Cavities Could Lead to Optoelectronic Advancements
WARSAW, Poland, Nov. 14, 2019 — A research collaboration from Poland, the United Kingdom, and Russia has created a two-dimensional system in which they trapped photons. The system, a thin optical cavity filled with liquid crystal, was modified with an external voltage that caused...
Device for Measuring Nanoparticles Could Aid in Quantum Measurement
VIENNA, Dec. 19, 2018 — A new device that can measure and control an optically trapped nanoparticle with extreme sensitivity has been developed by researchers at the University of Vienna and the Delft University of Technology. Although this approach has been used before...
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...
IOP Recognizes 4 for Photonics, Optics Research
LONDON, July 8, 2015 — University of Southampton professor Nikolay Zheludev has been awarded the 2015 Young Medal by the Institute of Physics in recognition of his work in optical metamaterials, nanophotonics and global leadership. Zheludev is deputy director of the...
Thermophotovoltaic System Exhibits Better Absorption
CAMBRIDGE, Mass., Oct. 1, 2014 — A 2-D photonic crystal could prove key in advancing the absorption and use of solar energy.
Existing Fab Methods Could Yield ‘Light Prison’
ENSCHEDE, Netherlands, Sept. 26, 2014 — A “prison for light” designed by Dutch theorists could be created using existing silicon-etching techniques and play a role in optical communications.
Swelling Sensor Detects Toxic Gas
CAMBRIDGE, Mass., June 17, 2014 — Those who work with hazardous substances could find an extra measure of protection in an optical sensor that puffs up in the presence of even trace amounts of toxic gases. Made from a 400-nm-thick film of polymethyl methacrylate (PMMA), the sensors...
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May 2024
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