New Laser Technique May Help Detect Chemical Warfare in Atmosphere

By: Graduate Studies on

The Department of Homeland Security could benefit from a reliable, real-time instrument that could scan the atmosphere for toxic agents in order to alert communities to a biological or chemical attack. UCF optics and photonics Professor  is developing just such a technology to accomplish that.

He has found a new way to use infrared lasers to detect even trace amounts of chemicals in the air. Every chemical is made up of individual molecules that vibrate at their own unique frequency. Vodopyanov has found a way to use lasers to detect these vibrations.

The technique is so accurate and sensitive that he can determine if there is a molecule of any chemical present even at concentrations as low as one part per billion. So even if someone tried to hide the toxic chemicals, his technique would be able to detect them.

His findings are published online today in Nature Photonics.

“We still have much work ahead,” he said. “We are now working on broadening the range of the laser frequencies that can get the job done. If costs can be reduced and the tech made mobile, the applications could be endless.”

A similar principle is used in the medical field to detect biomarkers for different kinds of health conditions, including cancer, by taking breath samples.

It’s possible, Vodopyanov said, because of the rules of physics.

“The frequencies of molecules are very distinct, but they are invariant – here, on a different continent, on a different planet, anywhere,” Vodopyanov said. “It is universal. Think of it as a molecular fingerprint. So when we use the laser we can detect these fingerprints with great precision.”

The novel approach could open the door for developing non-invasive technology, including sensors, that could be used to detect:

  • airborne agents that could be encountered in a biological or chemical attack at home or on the battlefield
  • traces of life by space explorers on missions to other planets or asteroids

Other collaborators on the Nature Photonics paper include Andrey Muraviev at UCF’s the College of Optics and Photonics, Viktor Smolski of IPG Photonics -– Mid-Infrared Lasers in Birmingham, AL, and Zachary Loparo from UCF’s Department of Mechanical and Aerospace Engineering.

Vodopyanov obtained his doctorate from the Lebedev Physical Institute in Moscow. He’s spent years teaching and conducting research in Russia, Germany, the United Kingdom and Stanford University in California before joining UCF in 2013. He’s also worked in industry, including the Silicon Valley start-up Picarro, which was developing a laser-based breath analyzer for early detection of ulcers. He’s written more than 300 papers and is funded by various organizations including the Defense Advanced Research Projects Agency, Office of Naval Research, Air Force and NASA.

Share This Article

Featured Content image

UCF Rosen College Ranks No. 1 in the World for Hospitality Education for 2025 

One of the most anticipated theme parks in the world is about to open its gates — and right next door, the No. 1 hospitality and hotel management school on...

Read More

Featured Content image

UCF Women’s Club Enhances Graduate Excellence through Scholarships

Financial support plays a crucial role in the academic success of many students, with scholarships serving as a key resource that enables many to access higher education. Scholarships provide vital...

Read More

Featured Content image

UCF Honors Outstanding Graduate Students for 2025

Each year, the University of Central Florida recognizes exceptional graduate students who have demonstrated excellence in academics, leadership, research, creative scholarship, and service. These outstanding individuals are honored through UCF’s...

Read More

Featured Content image

Founders’ Day 2025: Celebrating Student, Faculty and Staff Knights

Every year on the first Wednesday of April, UCF honors the outstanding accomplishments and contributions of our people on Founders’ Day, our annual celebration of the employees, faculty, and students...

Read More