New technique takes 3D imaging an octave higher

A collaboration between Colorado State University and University of Illinois at Urbana-Champaign resulted in a new, 3D imaging technique to visualize tissues and other biological samples on a microscopic scale, with potential to assist with cancer or other disease diagnoses.Their technique, which allows specimens to generate light at double the frequency, or half the wavelength, of the incident light, is referred to as harmonic optical tomography.