Descrizione
The Electronic Speckle Interferometry (ESPI) may be applied to the observation of physical phenomena in transparent fluids, where variations of physical properties produce a change in refractive index. With this non-destructive method it is possible to analyze the fluidodynamics in the growth cell or the dynamics of concentration gradients in chosen points around the crystal. Some KDP crystal growths from solution have been observed with the ESPI technique in order to prove its validity.
