If you probe those gases with a laser that spans multiple "optical frequencies," or colors, the molecules in the gas samples will absorb that light at different frequencies. It's almost like a burglar ...

The laser has multiple optical frequencies in its output. The gas molecules absorb light of different wavelengths differently, giving each type of molecule a unique fingerprint.

What’s that smell? If you can’t tell, maybe a new laser system from CU Bolder and NIST can help. The device is simple and sensitive enough to detect gasses at concentrations down to ...

So everything above the metal surface will actually absorb the light of the laser-cleaning machine. Once it touches anything above the metal, the heat will actually remove the contamination on top ...

An expert sommelier can tell a lot about what’s in a glass of wine from the merest smell and now a team of physicists at ...

If you probe those gases with a laser that spans multiple “optical frequencies,” or colors, the molecules in the gas samples will absorb that light at different frequencies. It’s almost like a burglar ...

Laser type: 810nm diode Skin tone range ... wavelengths—to target the pigment of the hair follicle and selectively absorb it while minimizing injury to the surrounding skin.

Introduced in the late 1990s, optical mice superseded mechanical mice because their sealed bottom surfaces do not absorb dust and dirt. They work by emitting light from an LED or laser ...

Get Instant Summarized Text (Gist) A new technique called "flying focus" has been demonstrated to steer laser-produced terahertz (THz) radiation in air. This method controls the group velocity of ...

But the emergence of blue-light lasers, which copper will absorb more readily, could help side-step these issues, says Hagino. The history of the blue-light laser diode is closely linked to that ...

If you probe those gases with a laser that spans multiple "optical frequencies," or colors, the molecules in the gas samples will absorb that light at different frequencies. It's almost like a ...