For the first time ever, scientists have used a technique called "quantum squeezing" to improve the gas sensing performance of devices known as optical frequency comb lasers. These ultra-precise ...

The researchers realized that the molten pools needed to be stabilized, which they could do by applying a shielding gas or ...

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 ...

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 ...

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 ...

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 ...

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 ...