Prototype Terahertz Imager Promises Biochem Advances

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The NIST terahertz imaging system reveals slight temperature differences as shown in this post-processed image. The color scale ranges from blue indicating 301 K or 28.75 degrees C to red indicating 302.5 K or 29.35 degrees C. The image was made of t ...
The NIST terahertz imaging system reveals slight temperature differences, as shown in this post-processed image. The color scale ranges from blue indicating 301 K or 28.75 degrees C, to red indicating 302.5 K or 29.35 degrees C. The image was made of the test scene shown in the photo, a room-temperature ring on top of a warmer absorber material. Quantitative analysis shows the current system can distinguish structures with dimensions as small as 4 millimeters, to be significantly improved in the future. Credit: NIST

Researchers at the National Institute of Standards and Technology have demonstrated a new imaging system that detects naturally occurring terahertz radiation with unprecedented sensitivity and resolution. The technology may become a new tool chemical and biochemical analyses ranging from early tumor detection to rapid and precise identification of chemical hazards for homeland security instruments.


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