Intracavity power measurement by Rayleigh scattering.

by Liou in Fig. 8 of Ref. 4, namely, elevation angle e = 60°, wavelength X = 0.7 yum, mode radius am = 4 Aim, and refractive index m = 1.310. The phase functions P(O,4) are not normalized and are shown as a function of the scattering angle 0 in different 4)-planes. The azimuthally averaged phase function is also shown by the solid line. One of the prominent differences between the present phase function and Liou's phase function is observed in the backward scattering regions. The backscattering is much more intense than Liou's phase function, and it comes from the direct backscattering by cylinders with A3* = r/2 (or 7 = r/2) and 0 =