UK researchers have successfully analyzed preservatives within some of Charles Darwin's historic specimen jars without ...

Raman spectroscopy is an optical technique that detects intrinsic vibrational, rotational and other low-frequency modes in molecules upon inelastic scattering of monochromatic light. Because different ...

WHEN a transparent substance is illuminated, a small fraction of the light is always scattered at right angles to the direction of the beam without undergoing a change in frequency, a phenomenon which ...