Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic illustration of main types of near-infrared (NIR) spectroscopy instrumentation. a NIR continuous wave spectroscopy with single-distance (NIRSDCWS) or multi-distance (NIRMDCWS). b NIR time-resolved spectroscopy (NIRTRS). c NIR phase modulation spectroscopy (NIRPMS)
