Lufkin is product manager for Thermo Fisher Scientific’s latest Raman spectroscopy analyzer, the
1064Defender
. “The 1064Defender is different because it uses a 1064-nanometer laser for analysis,” he says.
Using a 1064-nm laser for analysis is very beneficial for officers working to identify synthetic drugs, including fentanyl, according to Lufkin. “The 1064Defender suppresses background fluorescence that is common in a bunch of different materials, including fentanyl, MDMA, and meth,” he explains.
Background fluorescence makes it difficult for a Raman analyzer to identify some compounds. “If you’ve ever tried to look at someone standing in front of a big light and all you can see is their outline, that will give you an idea of how fluorescence affects Raman spectroscopy. The fluorescence overwhelms the signal and ultimately prevents us from seeing the things that make a chemical unique. The 1064Defender by the nature of its optical engine tones that light down so the chemical can be identified. With another analyzer you might not have received an ID at all or you might have had to take the chemical out of its package for additional processing.”
Lufkin says Thermo Fisher Scientific has been working on the development of the 1064Defender for several years. The laser system on the device presented some challenges, he says. “Our first Raman devices used 785-nm laser technology, which was adapted from the telecommunications industry. A 1064-nm laser is much more difficult to hone for Raman spectroscopy. That’s not just because the laser is much more powerful; it’s also because it generates more heat. And heat can complicate the identification process,” Lufkin explains.
There’s much more to the 1064Defender than the more powerful laser. The device is a combination of technologies. “We have a completely proprietary system of identification,” Lufkin says. “Everything from the laser to the chemical compound library to the algorithms are all tuned to make sure that we can really hone in on those mixtures that make up these materials and provide officers with detailed information.”