"I'm not really a terahertz spectroscopy person," he says. "As a beginner, I naively wondered why don't we remove the external moderator? That would simplify the system a lot, plus it would make it ...

Researchers developed an optoacoustic (OA) terahertz spectroscopy system that can be used for long-term, non-invasive monitoring of blood sodium levels. Their approach successfully reduces signal ...