We have experimentally validated the concept of a differential image motion (DIM) lidar for measuring vertical profiles of the refractive-index structure characteristic <i>C</i><sub><i>n</i></sub><sup>2</sup> by building a hard-target analog of the DIM lidar and testing it against a conventional scintillometer on a 300-m horizontal path throughout a range of turbulent conditions. The test results supported the concept and confirmed that structure characteristic <i>C</i><sub><i>n</i></sub><sup>2</sup> can be accurately measured with this method.
© 2000 Optical Society of America
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.3640) Atmospheric and oceanic optics : Lidar
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5710) Instrumentation, measurement, and metrology : Refraction
M. S. Belen'kii, D. W. Roberts, J. M. Stewart, G. G. Gimmestad, and W. R. Dagle, "Experimental validation of the differential image motion lidar concept," Opt. Lett. 25, 518-520 (2000)