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chemical sensing News
Thorlabs Acquires Maxion
NEWTON, N.J., Nov. 26, 2012 — Thorlabs has added mid-infrared laser capabilities with the acquisition of Maxion Technologies Inc. from Massachusetts-based contract research provider Physical Sciences Inc. Terms of the deal were not disclosed.
Simple, Safe Optochemical Sensor Relies on Light
GIESSEN, Germany, May 23, 2012 — Using only the interaction between nanostructures and light, an optochemical sensor has been developed that is simpler, safer and more reliable than standard electrical sensors. Researchers working on the European Union-funded Dotsense project have...
Quantum Cascade Lasers Enhance Mid-IR Spectroscopy
Dec 1, 2011 — Voltage-tunable output wavelength, broad gain spectra, high output power and efficiency, and innovative cavity geometries give quantum cascade laser-based sensor systems an edge in applications from gas analysis to chemical sensing. Most vapor...
T-rays produced by quantum cascade laser
PARIS – For the first time, terahertz rays, or T-ray pulses, have been made to emit separate “packets” of terahertz radiation – rather than one continuous beam – from a quantum cascade laser. The finding could open new doors for...
THz Semiconductor Laser Revealed
CAMBRIDGE, Mass. & LEEDS, England, Aug. 10, 2010 — Applications in terahertz science and technology may be getting a boost thanks to a new terahertz (THz) semiconductor laser that emits beams with a much smaller divergence than conventional THz laser sources. The metamaterial patterns are...
Quantum Dots Are Finding Their Place in the World
Apr 12, 2010 — There has been a panoply of research into the next big thing in quantum dots – those semiconducting artificial atoms that are ubiquitous in fluorescence imaging, biological and chemical sensing, and display applications. Quantum dots of more...
Capsules Mock Photosynthesis
WURZBURG, Germany, Nov. 11, 2009 – German chemists report progress toward achieving artificial photosynthesis by packing thousands of similar molecules together to create a tiny capsule, then using a different kind of molecule as a light absorbing and emitting “filling.”
The Answer Is Blowin’ in the Wind
Jun 1, 2009 — Although Dr. Anna Michel of Princeton University was in Beijing last summer during the Olympics, her visit definitely was not all fun and games. Michel, a postdoctoral researcher at MIRTHE (the Center for Mid-Infrared Technologies for Health and the...
Laser THz Source Demo’d
CAMBRIDGE, Mass., May 19, 2008 -- A room-temperature electrically pumped semiconductor laser source of terahertz (THz) radiation, reportedly the first of its kind, has the potential to become a standard source and could support applications such as security screening and chemical...
Laser Study Shines at CLEO
SAN JOSE, Calif., April 23, 2008 -- Detecting dangerous chemicals with lasers, exploring the brain’s circuitry with light, and photoluminescence with nanoneedles will be among the latest breakthroughs in electro-optics, lasers and the application of light waves presented at the...
Laser Study Shines at Show
SAN JOSE, Calif., April 23, 2008 -- Detecting dangerous chemicals with lasers, exploring the brain’s circuitry with light, and photoluminescence with nanoneedles will be among the latest breakthroughs in electro-optics, lasers and the application of light waves presented at the...
Koheras to Market Aculight's Argos in Europe
Mar 10, 2008 — Laser technology developer Aculight Corp. of Bothell, Wash., and fiber laser maker Koheras of Birkerød, Denmark, announced they have signed a joint marketing agreement for Aculight's Argos single-frequency, continuous-wave, multiwatt tunable optical...
Quantum Cascade Laser Array Provides Flexibility
for IR Spectroscopy
Feb 1, 2008 — Quantum cascade lasers — devices that can operate at infrared and terahertz wavelengths — are the only semiconductor lasers that can generate at room temperature wavelengths from 3 to 15 μm, the “molecular absorption fingerprint” region of the...
SERS in a Capillary Could Aid Biochemical Sensing on the Lab-on-a-Chip Scale
Feb 1, 2008 — Raman spectroscopy is useful for applications where high-specificity biological or chemical sensing is required. Unfortunately, sensitive detection using Raman-based sensors has proved more difficult, especially at the scale of lab-on-a-chip...
Changing Mid-Infrared Wavelengths in Milliseconds
Apr 1, 2007 — Because most molecules have unique vibrational spectra in the mid-infrared region (mid-IR is often defined as the region from 3 to 30 μm), spectroscopy in that region has many applications, from remote chemical sensing to biomedicine to...
Scientists Unlock Secrets of Crystal Formation
MINNEAPOLIS, April 19, 2006 -- Using some of the most advanced microscopes available, a team of researchers has discovered some clues as to how zeolite crystals -- porous minerals used as filters and purifiers -- form. The knowledge may allow scientists to create zeolites with...
NIR SPECTROMETERS
Mar 1, 2006 — Polychromix Inc. has launched a Web site where customers can order its products for materials analysis, chemical sensing and spectroscopy. Designed to meet the demand for portable analysis equipment, the e-commerce portal provides specifications and...
Photonic Crystal Enables Surface-Emitting Quantum-Cascade Laser
Dec 1, 2003 — By incorporating a photonic crystal resonator into the design of a quantum-cascade laser, researchers in the US have developed compact, surface-emitting devices with potential applications in chemical sensing, spectroscopy and imaging. Produced by a...
(18 results found)
May 2024
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