JILA unveils improved 'molecular fingerprinting' for trace gas detection

Scientists at JILA and collaborators have demonstrated an improved laser-based 'molecular fingerprinting' technique that picks out traces of key hydrogen-containing and other molecules from a billion other particles in a gas in just 30 seconds or less - performance suitable for breathalysers for diagnosing disease, measuring trace gases in the atmosphere, detecting security threats and other applications...

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