Table 3.

Micro near-infrared (MicroNIR) instruments’ parameters.

Illumination Source	Two Integrated Vacuum Tungsten Lamps
Illumination geometry	Flood illumination/0° observer
Input aperture dimensions	2.5 × 3.0 mm
Sample working plane	0–15 mm from window, 3 mm optimal distance
Detector	128 pixel InGaAs photodiode array
Pixel Size/Pitch	30 µm × 250 µm/50 µm
Wavelength range	950–1650 nm
Pixel to pixel interval	6.2 nm
Spectral bandwidth (FWHM)	<1.25% of center wavelength (1% typical)
Spectral in-band	LVF blocking >4 OD Average