The new technique instead detects changes in the intensity of diffracted light from a laser beam passing through miniscule 200 nm (0.0002 mm) -wide nanochannels filled with analytical sample liquids.
The stability and adjustability of the optical setup depend on the capability to separate the diffracted light of these small angles from the undiffracted laser beam.
The coloration or wavelength of the diffracted light depends on the angle of observation and can be enhanced by covering the meat with translucent foils.