ATMOSPHERIC-TURBULENCE COMPENSATION BY RESONANT OPTICAL BACKSCATTERING FROM THE SODIUM LAYER IN THE UPPER-ATMOSPHERE

被引：110

作者：

HAPPER, W

MACDONALD, GJ

MAX, CE

DYSON, FJ

机构：

[1] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

[2] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA

[3] INST ADV STUDY,PRINCETON,NJ 08540

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1994年 / 11卷 / 01期

关键词：

D O I：

10.1364/JOSAA.11.000263

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new concept is described for creating artificial beacons for atmospheric-turbulence compensation. A laser tuned to the sodium D-2 line is used to excite resonant optical backscattering from the sodium layer in the upper atmosphere. The performance of such a system is compared with that expected from artificial beacons based on Rayleigh scattering in the lower atmosphere. It is found that sodium scattering has a more favorable scaling to large-aperture systems. Applications to the compensation of ground-based astronomical telescopes for atmospheric turbulence are described.

引用

页码：263 / 276

页数：14

共 32 条

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