Microplastics are minute pieces of plastic with diameters ranging from a few micrometers to a couple of millimeters. In recent years, microplastics have become a global marine environmental issue ...

Mid-Infrared (Mid-IR) spectroscopy is extensively used for lubricant formulation and evaluation due to the detailed information on chemical composition offered by this technique. In recent years, it ...

Wet comb: NIST’s tabletop frequency comb being used to identify water molecules in air. The yellow squiggle at the top of the screen is the electric field of mid-infrared laser light that has passed ...