Abstract :
For the azimuthally varying complex-argument Laguerre-Gauss beams, the Fourier integral representation is used to obtain the time-averaged power and the transport equation for the mean-squared beam width. From the coefficients in the transport equation, two propagation parameters are derived and compared with the previous treatments.
Keywords :
Metrology , Surface measurements , Roughness , rough surfaces , scattering , Ultrafast optics , Ultrafast phenomena , COHERENCE , instrumentation , statistical optics , Speckle , Measurement