Shaddy Abado
*
, Stanislav Gordeyev
†
, and Eric J. Jumper
‡
Center for flow physics and control
University of Notre Dame, Notre Dame, IN 46656
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= jet exit nozzle width
= light spot position in direction
= light spot position in direction
= telescope magnification
= optical path difference
= peak to peak of optical path difference
= root-mean-square of optical path difference
= optical path length
= Instantaneous phase gradients
= convection velocity
= focal length
= index-of-refraction
= beam path
= time
= streamwise direction
= spanwise direction
= cross-stream direction
= beam deflection angle
= spot displacement
λ = wavelength
Ф = phase error
(!)
HEN a perfectly collimated, planar beam of light propagates through a field with variable index–of-refraction
it gets distorted, causing a significant reduction in the optical signal intensity in the far field, and degradation
in overall light transmitting system performance. When the transmitted system is airborne these effects are called
aero-optical effects
1
.
*
Graduate research assistant, Department of Aerospace and Mech. Eng, AIAA Student Member.
†
Assistant Research Professor, Department of Aerospace and Mech. Eng., Member AIAA.
‡
Professor, Department of Aerospace and Mech. Eng., Fellow AIAA.
W
40th AIAA Plasmadynamics and Lasers Conference
22 - 25 June 2009, San Antonio, Texas
AIAA 2009-4225
Copyright © 2009 by Shaddy Abado, Stanislav Gordeyev, and Eric J. Jumper. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.