Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design
A high-efficiency lidar receiver architecture that emphasizes boosting the receiver collection efficiency of resonance-fluorescence and Doppler lidars has opened up new avenues of study for the mesosphere and lower thermosphere-extended (MLT-X) at sites in Boulder, Colorado, USA, and Cerro Pachón, C...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1088.561 2023-05-15T14:02:49+02:00 Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design John A Smith Xinzhao Chu The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1088.561 http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1088.561 http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf text ftciteseerx 2020-05-24T00:18:37Z A high-efficiency lidar receiver architecture that emphasizes boosting the receiver collection efficiency of resonance-fluorescence and Doppler lidars has opened up new avenues of study for the mesosphere and lower thermosphere-extended (MLT-X) at sites in Boulder, Colorado, USA, and Cerro Pachón, Chile. Described in this work are in-depth considerations in the design, construction, and alignment of Na Doppler lidar receivers that have yielded signal levels typically 5-10 times higher per power-aperture product than any demonstrated in the literature, to these authors' knowledge, making studies of finescale MLT turbulence and tenuous thermospheric layers in Na possible with temperature and vertical wind capability for the first time. A lowering of the detection threshold by higher receiver collection efficiency at Cerro Pachón has enabled this Na Doppler lidar to extend its measurement range far higher into the thermosphere, to regions with Na density less than 3 cm −3 . With renewed interest in the MLT-X region prompted by recent lidar discoveries of Fe in the thermosphere reaching 170 km at McMurdo, Antarctica, the receiver optimizations we have made now enable addressing an important need in the community. In addition, the higher spatial and temporal resolutions afforded by high signal-to-noise ratio, down to resolutions of ∼20 s and ∼20 m, promise to make the first direct measurements of eddy flux in the mesopause region possible. Results from deployment of optimized receivers at the Text Antarc* Antarctica Unknown |
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A high-efficiency lidar receiver architecture that emphasizes boosting the receiver collection efficiency of resonance-fluorescence and Doppler lidars has opened up new avenues of study for the mesosphere and lower thermosphere-extended (MLT-X) at sites in Boulder, Colorado, USA, and Cerro Pachón, Chile. Described in this work are in-depth considerations in the design, construction, and alignment of Na Doppler lidar receivers that have yielded signal levels typically 5-10 times higher per power-aperture product than any demonstrated in the literature, to these authors' knowledge, making studies of finescale MLT turbulence and tenuous thermospheric layers in Na possible with temperature and vertical wind capability for the first time. A lowering of the detection threshold by higher receiver collection efficiency at Cerro Pachón has enabled this Na Doppler lidar to extend its measurement range far higher into the thermosphere, to regions with Na density less than 3 cm −3 . With renewed interest in the MLT-X region prompted by recent lidar discoveries of Fe in the thermosphere reaching 170 km at McMurdo, Antarctica, the receiver optimizations we have made now enable addressing an important need in the community. In addition, the higher spatial and temporal resolutions afforded by high signal-to-noise ratio, down to resolutions of ∼20 s and ∼20 m, promise to make the first direct measurements of eddy flux in the mesopause region possible. Results from deployment of optimized receivers at the |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
John A Smith Xinzhao Chu |
spellingShingle |
John A Smith Xinzhao Chu Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
author_facet |
John A Smith Xinzhao Chu |
author_sort |
John A Smith |
title |
Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
title_short |
Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
title_full |
Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
title_fullStr |
Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
title_full_unstemmed |
Active or adaptive optics; (010.3640) Lidar; (220.2740) Geometric optical design |
title_sort |
active or adaptive optics; (010.3640) lidar; (220.2740) geometric optical design |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1088.561 http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf |
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Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1088.561 http://cires1.colorado.edu/science/groups/chu/pubs/documents/2015AO_SmithChu_HighEfficiencyLidarArchitecture.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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