Northwest University develops new tunable infrared laser
The latest research progress of Northwestern University will provide another more effective tool for border security. The project is funded by the Department of Homeland Security. The laboratory developed a new broadband tunable infrared laser pointer. It can be used for the detection of drugs and explosives. This all-solid-state laser can be quickly adjusted to emit wavelengths in the "fingerprint" range. Within this range, most of the molecular properties are absorbed and identified by infrared sensors. In experiments, the laser demonstrated its ability to capture unique gas spectral fingerprints.
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The only moving part in the system is the fan for the laser to dissipate heat. Compared with the current system, mechanical parts are needed to realize detection. We want to show a system with superior stability. The results were published on June 8. The R&D team of this laser system has an internationally leading level in the field of quantum cascade lasers, with more than 18 years of relevant R&D experience, and currently works in the Quantum Equipment Center of Northwest University. The laser is integrated into a specific spectroscopic system. The system includes laser drive circuit and necessary tuning software. Through a single hole with a diameter less than 3 mm. The system can perform defense zone detection. And can provide fast and stable linear or random scanning.
2021-01-06 03:34:31
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