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Vortex gas lensA vortex gas lens concept is presented. Such a lens has a potential power density capability of 10 to the 9th - 10 to the 10th w/sq cm. An experimental prototype was constructed, and the divergence half angle of the exiting beam was measured as a function of the lens operating parameters. Reasonably good agreement is found between the experimental results and theoretical calculations. The expanded beam was observed to be steady, and no strong, potentially beam-degrading jets were found to issue from the ends of the lens. Estimates of random beam deflection angles to be expected due to boundary layer noise are presented; these angles are very small.
Document ID
19890066948
Document Type
Reprint (Version printed in journal)
Authors
Bogdanoff, David W. (NASA Ames Research Center Moffett Field, CA, United States)
Berschauer, Andrew (Washington, University Seattle, United States)
Parker, Timothy W. (NASA Ames Research Center Moffett Field, CA, United States)
Vickers, Jesse E. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
September 15, 1989
Publication Information
Publication: Applied Optics
Volume: 28
ISSN: 0003-6935
Subject Category
OPTICS
Distribution Limits
Public
Copyright
Other