Figure 2
Three channelled spectra recorded using a fibre-optic spectrometer for samples of the same thickness d = 0.455 mm, (1) for (100) and (2) for (010) plates of pure KDP, and (3) for KDP:L-Arg (3.8 wt%). The order of the interference fringes near 720 nm is identified here as m = 25. |