For the first time ever, scientists have used a technique called "quantum squeezing" to improve the gas sensing performance ...

Researchers have developed a new method for quickly detecting and identifying very low concentrations of gases. The new approach, called coherently controlled quartz-enhanced photoacoustic ...

High-powered fiber lasers are making endothermic cutting—using nitrogen, air, and gas mixing—a dominant method, but as Andujo ...

QEPAS can detect weak photoacoustic excitation and allows the use of extremely small sample volumes. But this method brings ...

Fuel cells offer a form of clean energy across many sectors and are of particular interest in vehicles, where they produce no ...

Such advancements demonstrate the ongoing efforts to refine laser spectroscopy techniques for more effective gas detection. Overall, the integration of advanced technologies and innovative designs ...

A third option is to frequency-double a gas laser to shift its output wavelength from around 10 μm to 5 μm. “Quantum cascade lasers can generate milliwatt continuous powers or multiwatt peak ...

Rather, he built a very clever gas mixer for filling his homemade CO2 laser tubes, which only looks like a welding machine. (Video, embedded below.) We’ve been following [Lucas] on his journey ...

For example, a plume expanding into ambient gas of low pressure around 100 mTorr exhibits plume splitting and sharpening [1]. A definitive mechanistic explanation for laser-induced plasma plume ...

As these laser pulses travel through the atmosphere ... That trade-off, however, allowed the researchers to detect molecules of gas with a lot fewer errors than before. They tested the approach out in ...

To achieve fast detection of low gas concentrations, the researchers combined a laser with an extremely fast tunable wavelength with quartz-enhanced photoacoustic spectroscopy and integrated ...