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Education News
Microscopy Method Uses Infrared Light to Image Molecules with Vibrational Contrast
PASADENA, Calif., July 7, 2023 — The complementary strengths of fluorescence and vibrational microscopy are combined in a new technique developed at Caltech, which is called bond-selective fluorescence-detected infrared-excited spectro-microscopy (BonFIRE). BonFIRE will benefit biological investigations by providing researchers with rich chemical information as well as single-molecule sensitivity. “With our new microscope, we can now visualize single molecules with vibrational contrast, which is challenging to do
Optically Addressed Spintronics Eliminates Need for Magnetic Fields
CAMBRIDGE, Mass., July 5, 2023 — Electron spins could become more efficient and easier to manage through a light-based approach using halide perovskite semiconductors. Research teams at Harvard’s Rowland Institute and the University of Cambridge observed ultrafast spin-domain...
Malley Richardson Awarded 2023 Teddi C. Laurin Scholarship for Research in Optofluidics
PITTSFIELD, Mass., June 5, 2023 — Malley Richardson, a mechanical engineering student at the University of British Columbia (UBC), has been awarded the 2023 Teddi C. Laurin Scholarship for her contributions to the field of optics and photonics. Richardson is actively engaged in...
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...
Optogenetics Reveals Relationship Between Brain and Gut Health
CAMBRIDGE, Mass., June 28, 2023 — The brain-gut connection is known to influence hunger and mood, and it has also been associated with neurological and other disorders. To explore the signaling that occurs between these two organs, scientists at MIT integrated light sources, thermal...
Compact, Single-Mode THz QCLs Get Boost from BICs
SINGAPORE, June 27, 2023 — A team at Nanyang Technological University (NTU) developed an electrically pumped, topological, bulk quantum cascade laser (QCL) that operates in the terahertz (THz) frequency range. The THz QCL is governed by a mechanism known as bound states in...
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...
Time-Resolved Spectroscopy Peers in on Irreversible Phenomena
OTTAWA, Ontario, June 26, 2023 — A team of researchers at the University of Ottawa developed a terahertz (THz) spectroscopy technique for recording movies in real time at 50,000 fps. High-speed video captures and slow-motion movies allow scientists to observe the mechanical...
Graph-Based Photonic Device Holds Key for Quantum Applications
BEIJING, June 23, 2023 — Collaborating researchers from Asia, Australia, and Europe developed a prototype of a graph-based quantum photonic device. The researchers based their architecture on the very large-scale integration (VLSI) of silicon quantum photonics to devise...
Near-Infrared Wavelength Specificity Yields Phototherapy Insights
ARLINGTON, Texas, June 19, 2023 — Transcranial photobiomodulation (tPBM) is an emerging form of light therapy that uses LEDs or low-intensity lasers that emit near-infrared (NIR) light to stimulate the brain. Although tPBM is in the early stages of development, it shows promise as a...
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....
Integrated, High-Speed QKD Broadens Reach of Quantum Security
WASHINGTON, D.C., June 15, 2023 — Quantum key distribution (QKD) provides long-term security for long-distance communications by generating encryption keys based on quantum mechanics. Quantum technology ensures a secure key exchange between sender and receiver. To industrialize and...
DNA-Barcoded Fluorescence Imaging Illuminates Core Cell Components
MUNICH, June 13, 2023 — Since many core components of cells — like DNA, RNA, proteins, and lipids — are just a few nanometers in size and substantially smaller than the resolution limit of traditional light microscopy, the exact composition and arrangement of...
Breakdown Spectroscopy Modifications Set Sensitivity Benchmarks
SHANGHAI, June 7, 2023 — Researchers at East China Normal University have developed a trio of techniques to elevate the sensitivity of ultrafast laser-induced breakdown spectroscopy (LIBS). The techniques — plasma grating-induced breakdown spectroscopy (GIBS),...
Metasurface Spectrometer Points to On-Chip Integration
EDINBURGH, Scotland, June 5, 2023 — Spectrometers typically use optical elements such as diffraction gratings and prisms to achieve the dispersion necessary to measure the properties of light over a specific portion of the spectrum. The use of free-space optical elements, along with...
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...
Sensor Uses Color Encoding for 3D Scene Reconstruction
SINGAPORE, May 26, 2023 — Researchers at the National University of Singapore (NUS) developed a light-field sensor that detects 3D light fields across the x-ray to visible light spectrum. The sensor relies on a pixelated color conversion strategy that is based on perovskite...
Ultrasmall Silicon LED Enables High-Resolution Integrated Imaging
SINGAPORE, May 22, 2023 — Researchers at the Singapore-MIT Alliance for Research and Technology (SMART) developed a CMOS-based silicon LED that, though smaller than a wavelength, emits light at an intensity comparable to much larger silicon LEDs. In a separate study, the...
FPGA-Based Data Compression Drives Brain Imaging Performance Gains
EDINBURGH, Scotland, May 17, 2023 — To help broaden the use of single-photon avalanche diode (SPAD) cameras for multispeckle diffuse correlation spectroscopy (DCS), researchers at the University of Edinburgh developed a data compression scheme for a large-pixel-count SPAD camera using...
High-Speed Two-Photon Microscopy Captures Rapid Bio Processes In Vivo
SUZHOU, China, May 15, 2023 — Two-photon microscopy (TPM) enables deep tissue imaging of complex biological processes at high resolution. However, the ability to visualize some biological processes, such as neural activity at the sub-millisecond scale, requires high-speed...
Photoswitchable Materials Streamline Thermal Regulation
SANTIAGO DE COMPOSTELA, Spain, May 12, 2023 — The design and development of functional materials with tunable thermal conductivity — for example, to ensure the thermal dissipation in microelectronics devices — is necessary to prevent such devices from overheating. The ability to...
Light from Electrically Driven QDs Shines on Silicon Photonics
LOS ALAMOS, N.M., May 11, 2023 — Scientists at Los Alamos National Laboratory (LANL) demonstrated amplified spontaneous emission (ASE) from electrically pumped colloidal quantum dots (CQDs). The CQD-based lasing devices, developed after many years of work by the LANL team, use...
Paper-Based Test Scans for Multiple Biomarkers in Human Serum
LOS ANGELES, May 11, 2023 — Researchers led by UCLA professor Aydogan Ozcan developed a deep learning-enabled biosensor for multiplexed, point-of-care (POC) testing of disease biomarkers. POC biosensors provide remote and resource-limited communities with an economical,...
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...
Mobile-Based Image Reconstruction App Can Be Used at Point of Care
AMES, Iowa, May 2, 2023 — A mobile phone application for photoacoustic tomography (PAT) image reconstruction has demonstrated performance comparable to that of applications implemented on laptop computers and workstations. The first-of-its-kind application was developed by a...
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