Application of laser to detect drug, explosive remotely

A team of specialists from the Siberian National Geographic Institute (SSGA) in Novosibirsk, Russia, has developed a method of using laser radiation (infrared) to detect drugs and explosives at a distance of 10-100m , as well as the recognition of methane concentration at a distance of 10 km with high accuracy without any action or change the status of the object was detected.

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Valeri Khairapetyan, head of SSGA's specialized equipment and technology division, said the nature of the invention was the use of a large-scale laser scanner to adjust the radiated frequency when analyzing objects. search for substances and strange objects.

Mr. Valeri explains that the laser beam can adjust and change the frequency of radiation, while interacting with potential substances that can regulate the frequency of the substance or object.

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When the frequency resonance coincides, the signal from this substance will increase dramatically. Thus, by tracking and recognizing the signal increase, distance can determine the concentration and other parameters of the substance.

According to experts, the search for explosives is driven by the frequencies of explosive materials. It is possible to project laser beams to the main questionable object at specific frequencies; If the feedback signal has the same frequency, it is clear that the object is carrying the explosive.

The same thing happens when looking for drugs, because the laser is capable of reproducing the spectrum where the drugs are strongly absorbed by the line. The remote-sensing properties of drugs and explosives greatly reduce the risk of risk to humans.

In addition, experts emphasize the scope of application of this technology is quite broad. The use of lasers not only helps detect explosives and drugs at the airport, analyzes methane concentrations in the mines, but also helps to monitor the state of the environment, and can even help with testing. blood in case of emergency.

SSGA experts say their invention has been applied in the Greek capital Athens to assess atmospheric pollution.