Abstract
We have obtained the spectral and spatial field correlation functions, and respectively, from measurement of the microwave field spectrum at a series of points along a line on the output of a random dielectric medium. and are shown to be the Fourier transforms, respectively, of the time of flight distribution, obtained from pulsed measurements, and of the specific intensity. Unlike the imaginary part of is shown to vanish as a result of the isotropy of the correlation function in the output plane. The complex square of the field correlation function gives the short-range or contribution to the intensity correlation function C. Longer-range contributions to the intensity correlation function are obtained directly by subtracting from C and are in good agreement with theory.
- Received 7 March 2000
DOI:https://doi.org/10.1103/PhysRevE.62.7348
©2000 American Physical Society