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Nano News
Simulated Technique Cuts Losses in Optical Resonators
ESPOO, Finland, Sept. 13, 2023 — Optical resonators are used to control light in a range of photonic applications, from pocket-size laser pointers to quantum computers. When a resonator experiences optical loss, its ability to trap and concentrate photons deteriorates, reducing its ability to control the photons’ behavior. Researchers at Aalto University devised a way to eliminate both the radiation and the absorption losses in optical resonators. The new loss-mitigation technique could considerably boost the
Complex Frequency Waves Counter Optical Losses in Superimaging
HONG KONG, Sept. 11, 2023 — Superlenses made of plasmonic materials and metamaterials can image features at the subdiffraction scale. However, intrinsic losses restrict the image resolution of superlenses, hindering their widespread use. To compensate for optical loss in...
Tomography Technique Images Thick Bio Samples at High Resolution
CAMBRIDGE, Mass., Sept. 8, 2023 — The ability to image complex biological tissues is essential for many biological studies and clinical diagnostic applications. However, capturing detailed 3D images of thick biological samples is difficult, due to multiple light-scattering in the...
Industrial Photocatalyst Harnesses the Visible Spectrum
JOHANNESBURG, Sept. 4, 2023 — Photocatalysts show the potential to be used in energy generation and environmental detoxification applications. This is an intriguing quality, since reducing energy use in bulk industrial processes can create a trade-off between efficiency and...
Spin-Optics Laser Enables Electron and Photon Spins for Optoelectronics
HAIFA, Israel, Aug. 17, 2023 — Researchers at the Technion Israel Institute of Technology developed an atomic-scale, spin-optical laser. To do so, they incorporated a WS2 monolayer into a heterostructure microcavity that supported high-Q photonic spin-valley resonances. The...
Light-Activated Metal Particles Deliver Targeted Cancer Treatment
NOMI, Japan, Aug. 15, 2023 — A research group from Japan Advanced Institute of Science and Technology (JAIST) developed light-activatable, liquid metal (LM) nanoparticles for cancer diagnosis and treatment via photoimmunotherapy. The LM nanoparticles can target and destroy...
SPIE Optics + Photonics to Host Industry Leaders, Discuss the Best in Tech
SAN DIEGO, Aug. 14, 2023 — SPIE’s five-day Optics + Photonics trade show and exhibition will return to the San Diego Convention Center Aug. 20-24, with the company exhibition portion scheduled to run Aug. 22-24. Attendees can expect over 2200 presentations in a...
Near-IR Biosensors Use DNA Anchors to Target Range of Molecules
BOCHUM, Germany, Aug. 10, 2023 — To build a flexible sensor for optically detecting a range of viruses and bacteria, a group of researchers from Ruhr University Bochum (RUB), the Fraunhofer Institute for Microelectronic Circuits and Systems (IMS), and ETH Zurich used...
Linear Waveguide Streamlines Directional Single-Photon Production
BARCELONA, Spain, July 31, 2023 — Researchers from the Institute of Optics of CSIC and the Institute of Photonic Sciences (ICFO, Spain) have developed and demonstrated an approach to generating single photons along well-defined directions. The advancement avoids the need for...
Nanophotonic Simulator Performs Computations at the Quantum Level
ROCHESTER, N.Y., July 21, 2023 — Researchers at the University of Rochester (UR) have developed a photonics-based quantum simulation system that simulates physical phenomena at the quantum level. The nanophotonic quantum simulator performs chip-scale simulations in a...
Lasers Help Mimic Biosystems as Team Prods Organisms’ Reproduction
NEW YORK, July 20, 2023 — Researchers at New York University (NYU) have devised a system of asynchronous, optically driven micro-rotors that could be used to study far-from-equilibrium phenomena such as turbulent weather and biosystems. The advancement could potentially be...
At-Home Biosensing Platform Developer Gets $27M Investment
BURLINGTON, Mass., July 19, 2023 — SiPhox Health, an MIT spinout developing laboratory-grade home health testing using silicon photonics technology, has secured $27 million in financing — $10 million in seed financing and $17 million in a series A round. According to SiPhox,...
Tin Coatings’ Growth Effects Reveal Path to Precise Control
JENA, Germany, July 19, 2023 — Nanometer-scale coatings with functional materials are used for numerous applications in photonics and electronics, including in sensors and biomedicine. One-dimensional nanostructures, which are among these materials, attract substantial attention;...
REM Atoms and Nanophotonic Resonator Offer Path to Quantum Networks
GARCHING, Germany, June 29, 2023 — Researchers at Max Planck Institute of Quantum Optics (MPQ) and Technical University of Munich (TUM) demonstrated a potential platform for large-scale quantum computing and communication networks. Secure quantum networks are of interest to financial...
Novel Hybrid Material Facilitates Photon Upconversion
RIVERSIDE, Calif., June 26, 2023 — University of California, Riverside (UCR) researchers have designed a composite material that offers powerful photon upconversion capabilities and that could support a range of light-driven applications as a result. The composite is made from...
High-Speed Nanomachining Imparts Nanostructures’ Finest Features
XIAMEN, China, June 15, 2023 — The need to increase component density, as well as add performance, are long-standing drivers behind the development of nanofabrication technology. Both qualities require a high level of accuracy in materials processing and manufacturing capability....
Scientists Develop Nano-sized N-Slit Quantum Interferometers
ROCHESTER, N.Y., May 29, 2023 — Researchers led by physicist F.J. “Frank” Duarte — credited with the 1993 invention of the N-slit laser interferometer — have designed practical N-slit quantum interferometers in the nanometer domain. The work, which the...
Raising Light Frequencies Makes Nanosized Objects Visible
CANBERRA, Australia, May 3, 2023 — Researchers at Australian National University (ANU) and the University of Adelaide are using nanotechnology to increase the frequency of the light that can be detected by cameras and other technologies by up to seven times. There is significant...
Nanoscale Spectroscopy Supports Optoelectronic Device Architectures
POHANG, South Korea, April 20, 2023 — 2D semiconductors based on heterostructures are attracting attention as potential next-generation materials for the electronics industry. However, it is challenging to commercialize these materials because the physical properties of their...
Reusable Substrate Enhances Raman Signal by Factor of 50
KIEL, Germany, March 31, 2023 — Materials scientists at Kiel University have developed a photoinduced enhanced Raman spectroscopy (PIERS) method to detect analytes at concentrations one to three orders of magnitude lower than that which can be achieved using classical...
Chip-Scale Spectrometer Points to Portable Instrumentation
HONG KONG, March 24, 2023 — Scientists at the Chinese University of Hong Kong have developed an approach to chip-scale spectrometry that offers both high spectral resolution and optical bandwidth. The researchers designed and developed an integrated spectrometer by tailoring...
Dual-Property Coating Combats Fog, Reflections at Same Time
JENA, Germany, March 20, 2023 — Researchers from the Fraunhofer Institute for Applied Optics and Precision Engineering IOF (Fraunhofer IOF) and Friedrich Schiller University Jena developed an optical coating system that combines antifogging (AF) and antireflective (AR) properties....
Researchers Shrink Dimensions in Which Light Can Be Confined
SOUTHAMPTON, England, March 16, 2023 — The degree to which light can be confined determines the intensity and precision of light-based devices. It also sets the limits within which nanoparticles can be observed. For these reasons, finding ways to confine and control light in ever smaller...
Light-Activated Molecular Machines Kill Pathogenic Fungi
HOUSTON, Feb. 9, 2023 — In the game-turned-TV series, The Last of Us, post-apocalyptic survivors Joel and Ellie make their way across the U.S., outrunning zombie hordes while coping with societal collapse, all caused by a nasty mutation in the parasitic Cordyceps fungus,...
Signal Enhancement Enables Study of Label-Free Proteins
MARSEILLE, France, Jan. 26, 2023 — Researchers at Institut Fresnel have developed a technique to detect the ultraviolet-autofluorescence signal in single proteins, opening the way for the label-free study of thousands of proteins whose natural fluorescence cannot be detected using...
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May 2024
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