Optical Second Harmonic Generation Microscopy as a Tool of Material Diagnosis
Figure 4
The optical system of SHGIM; Nd : YVO4 laser, (2a, b) lens, a separator, (4, 4′) an attenuator, ) a polarizer, (6, 8, 10) a half-wave plate, a phase modulator, a QPM wave-converter, a harmonic separator, objectives with NA of 0.7, a stepping motor sample stage, a piezo-actuator stage, an analyzer, a lens, an aperture variable pinhole, a spectrometer, a photomultiplier tube, a lock-in amplifier, a computer.
