Laser liquid scanner could rescue water bottles from pre-flight trash

Having to dump your bottled liquids as you go through airport security has become a frustrating addition to flying headaches in recent years, but the awesome power of lasers could soon ensure your flask contains Evian not napalm. Cobalt Light Systems has cooked up the INSIGHT100, a laser scanning system that can differentiate dangerous substances from safe ones while they’re still in their container, opening the aircraft doors to water bottles, perfume and toothpaste. Lurking on the counter like an oversized microwave, the INSIGHT100 can identify liquids, powders and gels inside sealed containers such as glass or plastic bottles or tubs, even if those containers are opaque. The system is said to have a false alarm rate of 1.5-percent or less, and each scan takes under five seconds. The magic is in something called Spatially Offset Raman Spectroscopy (SORS), bouncing certain spectra of light off a substance depending on the molecules [...]

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