Abstract
Recent measurements of the scintillation index have generally indicated values larger than those predicted by theories which assume a vanishing inner scale I//0. A relatively accurate technique is based on monitoring the spherical-wave logarithmic amplitude variances of two light sources. The present authors propose using the light wavelength as the additional degree of freedom required for determination of I//0. By using a laser transmitter emitting collinearly at two wavelengths, lambda //1, lambda //2, and two wavelength selective detectors, sharing the same relatively small receiver optics, the bichromatic correlation between the scintillations of lambda //1 and lambda //2 can be measured. This intensity correlation is a single-valued function of the inner scale size vertical //0 for a given propagation path. The optical paths are identified for the two beams, and aperture averaging is insignificant.
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Publisher | Optical Soc of America |
| Pages | 4-5 |
| Number of pages | 2 |
| ISBN (Print) | 0936659491 |
| State | Published - 1987 |
| Externally published | Yes |