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Tunable Lasers News
Optical Imaging Circuit Bridges Timescales in High-Speed Photography
TOKYO, Dec. 28, 2023 — Ultrafast optical imaging is typically measured in picoseconds, whereas high-speed electronic cameras image at the millisecond and microsecond timescale. To bridge the gap between these technologies, a research team at the University of Tokyo developed a technology they’re calling “spectrum circuit,” a precision optical circuit that allows superfine images to be taken over multiple timescales at high speed. Using the new technology, the researchers
Photonic Gas Analysis Probes Upgrades in Sources and Detectors
Mar 3, 2023 — The hunt is on for better gas analyzers, driven by growing demands. For instance, hydrogen sulfide, an industrial byproduct, has a permissible worker exposure limit of 20 ppm in a confined space, according to OSHA. Increasingly stringent emission...
Simple Approach to Laser Color Conversion Uses SRS in Ionic Liquids
UPTON, N.Y., Feb. 1, 2023 — Scientists from Brookhaven National Laboratory showed that ionic liquids provide an efficient means to convert one color of laser light into another. The discovery could lead to a way to create lasers with desired colors for a range of medical,...
Frequency Converters Take Big Step Toward Miniaturizing Lasers
NEW YORK, Aug. 30, 2022 — Researchers from Columbia University and Politecnico di Milano used an atomically thin material to build microscopic color converters. The advancement is a first step toward replacing the standard materials used in today’s tunable lasers,...
Collaboration to Scale Up Silicon Photonics Testing for Lidar
SINGAPORE, April 18, 2022 — CompoundTek Pte Ltd., a foundry service provider in silicon photonics solutions, will collaborate with lidar solutions provider Voyant Photonics to establish a high-volume silicon photonics (SiPh) wafer test for lidar. The test is to be specifically...
Microlaser Achieves Optical Gain Via Spin-Helix Lasing
WARSAW, Poland, April 6, 2022 — A microlaser that is tunable in the range of 40 nm has been developed by researchers at the University of Warsaw, the Military University of Technology in Warsaw, and the University of Southampton. The broadly tunable laser emits two circularly...
Ultrafast Lasers Excite Advancements in Multiphoton Imaging
Sep 30, 2021 — Multiphoton microscopy can image deeper into tissue than traditional confocal microscopy, making it ideal for a range of life science studies. The technique is crucial for brain-related research because it allows imaging of large numbers of neurons...
Applications for Portable Optical Gas Analyzer Range from Volcanos to Sewers
HAMAMATSU, Japan, Aug. 25, 2021 — Hamamatsu Photonics and the National Institute of Advanced Industrial Science and Technology (AIST) in Tokyo collaborated on an all-optical, portable gas monitoring system for predicting volcanic eruptions with a high degree of sensitivity. In...
Tunable Laser Spectroscopy Achieves New Peaks
Jul 1, 2021 — The modern world, with the ever-growing impact of technology on humanity and the environment, requires us to thoroughly understand how our civilization works and what it produces — even the invisible matter such as gases that we emit into the...
Novel Metasurface Enables Unprecedented Laser Control
CAMBRIDGE, Mass., July 1, 2021 — Harvard researchers have introduced a single metasurface that can effectively tune the different properties of laser light, including wavelength, without additional optical components. The metasurface can split light into multiple beams and control...
Biologically Controlled Lasing Could Lead to Nanoscale Functionality
SINGAPORE, Nov. 16, 2020 — An international research team at Nanyang University has demonstrated the concept of a switchable microlaser controlled by the organic biomolecule DNA hybridization process. The study could lead to the development of programmable photonic devices at...
Continuous, Stable Lasing Achieved with Perovskite Laser
FUKUOKA, Japan, Sept. 8, 2020 — A team of researchers from Kyushu University in Japan and Changchun Institute of Applied Chemistry in China has demonstrated stable, continuous lasing at room temperature for over an hour using low-cost perovskites. Perovskites have been an...
Tunable Laser Determines Best UV Wavelengths for Germ Eradication
GAITHERSBURG, Md., July 31, 2020 — While awaiting full access to their labs due to COVID-19 restrictions, scientists at the National Institute of Standards and Technology (NIST) have taken the time to report on research conducted in 2012 on the disinfection of drinking water using...
Laser Irradiation Degrades Cellulose for Use in Biofuel
TOKYO, July 27, 2020 — A laser-based technique developed by a Japanese research team could make it easier to degrade the plant product cellulose, which is used to produce biofuel. The new technique is based on a type of laser called the infrared-free electron laser...
Model Guides Precise Formation of Plasmonic Components
ST. PETERSBURG, Russia, July 22, 2020 — Using a real-time mathematical analysis model developed at ITMO University, scientists will now be able to manipulate the process of creating photonic and plasmonic components to produce the precise optical properties that are needed in a material....
Integrated Platform for Visible-Light Chip Could Further Miniaturization
ST. PETERSBURG, Russia, June 26, 2020 — To support the miniaturization of optical devices and components, a scientific team led by researchers at ITMO University has devised a quick, affordable method to make visible-light nanophotonic chips. The light source for the chip can be grown...
Laser-Cooled YbOH Molecules Could Support New Discoveries in Physics
CAMBRIDGE, Mass., May 15, 2020 — Researchers at Harvard University and Arizona State University have demonstrated laser cooling of polyatomic YbOH molecules, in a first step toward using these molecules to make precision measurements of the electron’s electric dipole moment...
Partners to Boost European Supply of Space-Qualified Laser Crystals
HANNOVER, Germany, April 23, 2020 — Laser Zentrum Hannover eV (LZH) will partner with Optomaterials srl in Italy and Altechna Coatings UAB in Lithuania to develop a European supply chain for space-qualified, high-performance laser crystals made of alexandrite. The EU project, named...
Scientists Use Electrochemistry to Tune Nonlinear Optical Properties of Nanotubes
MOSCOW, Oct. 24, 2019 — An international team led by researchers from the Skolkovo Institute of Science and Technology (Skoltech) has shown that the nonlinear optical response of carbon nanotubes — specifically, saturable absorption — can be controlled by electrochemical...
MWIR Laser Enables Study of High-Explosive Detonations
TUCSON, Ariz., and RICHLAND, Wash., Sept. 5, 2019 — Scientists at the University of Arizona and Pacific Northwest National Laboratories used a broadly tunable swept-wavelength external cavity quantum cascade laser (swept-ECQCL) operating in the midwave infrared (MWIR) spectral region to measure...
Welding with Pulsed Lasers Protects Temperature-Sensitive Materials
LA JOLLA, Calif., Aug. 29, 2019 — A new ceramic welding technology developed by engineers at the University of California, San Diego and the University of California, Riverside uses a series of short, ultrafast laser pulses to melt ceramic materials along the interface between two...
Scientists Image the Ultrafast Motion of a Rotating Molecule
HAMBURG, Germany, Aug. 6, 2019 — Scientists at the Center for Free-Electron Laser Science (CFEL) and the Max Born Institute (MBI) have used precisely tuned pulses of laser light to film the ultrafast rotation of a molecule. The resulting “molecular movie” tracks one and one-half...
New High-Power, Tunable THz Laser Is Slated for Space Mission
CAMBRIDGE, Mass., Dec. 20, 2018 — A new terahertz (THz) laser designed by researchers at Massachusetts Institute of Technology (MIT) has demonstrated high constant power, tight beam pattern, and broad electric frequency tuning — three performance metrics that could mean less noise...
Mini-QCL Frequency Combs Provide Solution for Chemical Sensing
VIENNA, Dec. 13, 2018 — Researchers at the Vienna University of Technology (TU Wien) are working with laser frequency combs to enable chemical analysis on a chip. This new patent-pending technology will enable frequency combs to be created on a single chip in a simple,...
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...
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April 2024
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