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Prototype Holographic Atmospheric Scanner for Environmental Remote Sensing (PHASERS)A ground-based atmospheric lidar system that utilizes a Holographic Optical Telescope and Scanner has been developed and successfully operated to obtain atmospheric backscatter profiles. The Prototype Holographic Atmospheric Scanner for Environmental Remote Sensing is built around a volume phase reflection Holographic Optical Element. This single optical element both directs and collimates the outgoing laser beam as well as collects, focuses, and filters the atmospheric laser backscatter, while offering significant weight savings over existing telescope mirror technology. Conical scanning is accomplished as the HOE rotates on a turntable sweeping the 1.2 mrad field of view around a 42deg cone. During this technology demonstration, atmospheric aerosol and cloud return signals have been received in both stationary and scanning modes. The success of this program has led to the further development of this technology for integration into airborne and eventually satellite earth observing scanning lidar telescopes.
Document ID
Document Type
Reprint (Version printed in journal)
Guerra, David V.
(Saint Anselm Coll. Manchester, NH United States)
Schwemmer, Geary K.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Wooten, Albert D., Jr.
(College of Western Maryland Westminister, MD United States)
Chaudhuri, Sandipan S.
(College of Western Maryland Westminister, MD United States)
Wilkerson, Thomas D.
(Utah State Univ. Logan, UT United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Journal of Geophysical Research Atmospheres
Subject Category
Instrumentation And Photography
Funding Number(s)
PROJECT: RTOP 632-20-22
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