| Автор | Jun Zhang |
| Автор | Zongyong Zeng |
| Дата выпуска | 2001-07-01 |
| dc.description | The Fried coherence length is quantitatively measured by means of two different methods in a convective turbulence tank for wavefront compensation experiments in adaptive optics. The spectra of angle-of-arrival (AA) fluctuations and their probability distribution are given. The fluctuation of the wavefront phase follows a normal distribution. The χ<sup>2</sup> distribution appears to be a reasonable assumption for variance of AA fluctuations, and the statistical distribution P(r<sub>0</sub>) regarding the Fried coherent length r<sub>0</sub> of experimental results is shown. The spectrum of AA fluctuations in the x-direction, being the same as the spectrum in the y-direction, obviously indicates that the turbulence in the tank is an isotropic feature. The experimental results for the Fried coherence length and temperature differences between a heated plate and cooled plate correspond to the similarity relationship in fluid mechanics and thermodynamics experiments in a convective turbulence tank. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Statistical properties of optical turbulence in a convective tank: experimental results |
| Тип | paper |
| DOI | 10.1088/1464-4258/3/4/302 |
| Electronic ISSN | 1741-3567 |
| Print ISSN | 1464-4258 |
| Журнал | Journal of Optics A: Pure and Applied Optics |
| Том | 3 |
| Первая страница | 236 |
| Последняя страница | 241 |
| Выпуск | 4 |
