Digital Micromirrors Reveal New Opportunities for NIR Spectroscopy

Read our latest contributed article in the February issue Photonics Spectra about DMD based spectroscopy, written by Dr. Thomas Rasmussen.

Spectrometers based on Digital Micromirror Device (DMD) technology are especially well suited for the near-infrared range due to a lower cost than most alternative technologies. DMD spectrometers can also provide advanced functions like Hadamard scanning to improve signal-to-noise ratio. 

In the article, he reviews how DMD-based spectrometers work and how they can be incorporated into measurement instruments for both reflection and transmission geometries. He uses Process Analytical Technology (PAT) applications in the food industry as an example.

Finally, a comparison of the DMD-technology with three other commonly used technologies for NIR spectroscopy is provided.