Abstract
Phase diversity measurements using diffractive encoding systems offer a means for simultaneous measurement of the angular dependence of the turbulence induced in the wavefront distortion and either the angular dependence of scintillation induced during atmospheric propagation or the turbulence-degraded point spread function. We will describe experiments designed to measure the wavefront distortion and angular decorrelation of the atmospheric transfer functions, and discuss the observational strategy for measurement of atmospheric properties under a range of atmospheric conditions and propagation distances. By reconstructing the laser wavefront and comparing the calculated and measured images we will also aim to investigate the effect of strong scintillation on phase diversity wavefront reconstruction techniques. Laboratory tests of the equipment and preliminary measurements will be described, as well as some theory and modeling.
| Original language | English |
|---|---|
| Article number | 60180W |
| Journal | Proceedings of SPIE - the International Society for Optical Engineering |
| Volume | 6018 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | 5th International Workshop on Adaptive Optics for Industry and Medicine - Beijing, China Duration: 29 Aug 2005 → 1 Sep 2005 |
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Keywords
- Anisoplanatism
- Atmospheric propagation
- Scintillation
- Wavefront sensing
Cite this
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Anisoplanatic atmospheric measurements for terrestrial imaging. / Dillon, Clare E.; Dalgarno, Heather; Zhang, Sijiong; Greenaway, Alan H.
In: Proceedings of SPIE - the International Society for Optical Engineering, Vol. 6018, 60180W, 2005.Research output: Contribution to journal › Article
TY - JOUR
T1 - Anisoplanatic atmospheric measurements for terrestrial imaging
AU - Dillon, Clare E.
AU - Dalgarno, Heather
AU - Zhang, Sijiong
AU - Greenaway, Alan H.
PY - 2005
Y1 - 2005
N2 - Phase diversity measurements using diffractive encoding systems offer a means for simultaneous measurement of the angular dependence of the turbulence induced in the wavefront distortion and either the angular dependence of scintillation induced during atmospheric propagation or the turbulence-degraded point spread function. We will describe experiments designed to measure the wavefront distortion and angular decorrelation of the atmospheric transfer functions, and discuss the observational strategy for measurement of atmospheric properties under a range of atmospheric conditions and propagation distances. By reconstructing the laser wavefront and comparing the calculated and measured images we will also aim to investigate the effect of strong scintillation on phase diversity wavefront reconstruction techniques. Laboratory tests of the equipment and preliminary measurements will be described, as well as some theory and modeling.
AB - Phase diversity measurements using diffractive encoding systems offer a means for simultaneous measurement of the angular dependence of the turbulence induced in the wavefront distortion and either the angular dependence of scintillation induced during atmospheric propagation or the turbulence-degraded point spread function. We will describe experiments designed to measure the wavefront distortion and angular decorrelation of the atmospheric transfer functions, and discuss the observational strategy for measurement of atmospheric properties under a range of atmospheric conditions and propagation distances. By reconstructing the laser wavefront and comparing the calculated and measured images we will also aim to investigate the effect of strong scintillation on phase diversity wavefront reconstruction techniques. Laboratory tests of the equipment and preliminary measurements will be described, as well as some theory and modeling.
KW - Anisoplanatism
KW - Atmospheric propagation
KW - Scintillation
KW - Wavefront sensing
UR - http://www.scopus.com/inward/record.url?scp=33644804247&partnerID=8YFLogxK
U2 - 10.1117/12.669361
DO - 10.1117/12.669361
M3 - Article
VL - 6018
JO - Proceedings of SPIE - the International Society for Optical Engineering
JF - Proceedings of SPIE - the International Society for Optical Engineering
SN - 1996-756X
M1 - 60180W
ER -