We present an experimental study of the propagation of quantum noise in a multiple scattering random medium. Both static and dynamic scattering measurements are performed: the total transmission of noise is related to the mean free path for scattering, while the noise frequency correlation function determines the diffusion constant. The quantum noise observables are found to scale markedly diff...

Porous media like air-saturated polymer foams with open cells, have a nontrivial frequency-dependent absorption that arises due to viscous and thermal effects at the scale of the rigid frame microstructure. In order to produce multiple scattering at ultrasonic frequencies, mesoscale scatterers are introduced in the porous medium host. The effective wave number of such a multiscale medium should...

A refined photographic system for solar aureole measurements is described in which a neutral density filter occulting disk blocks the direct sunlight. Experimental data for solar aureoles are presented for several wavelengths from 309 nm to 640 nm and solar zenith angles of up to 88 degrees . The results are compared with a modified single scattering calculation that includes corrections for Ra...