Terahertz Spectroscopy and Deep Learning Spot Hidden Explosives
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By
February 13, 2026
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3 min
Researchers have developed an imaging system combining terahertz time-domain spectroscopy (THz-TDS) with deep learning to accurately identify explosives and chemicals, even when concealed under opaque materials. The UCLA team's innovative method achieved over 99% accuracy in blind tests by analyzing individual terahertz pulses instead of average spectra, addressing limitations in traditional chemical sensing. This system operates in reflection mode and incorporates advanced technology, promising enhanced capability for non-contact chemical imaging.
1. A novel imaging system combines THz-TDS with deep learning. 2. Achieved 99.42% accuracy in chemical identification. 3. Operates in reflection mode with plasmonic nanoantenna arrays. 4. Time-domain analysis improves performance under concealment. 5. Tested on both pharmaceutical compounds and explosives. 6. Promises non-contact chemical imaging capabilities. 7. Future advancements could refine system efficiency.
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