Holography through optically active windows
Arthur J. Decker, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office, Lewis Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Office, 1979 - Technology & Engineering - 15 pages
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Aeronautics and Space analytically the stress-pattern-free angle beam diverger chosen to propagate complex contour complexly contoured window component compressor coordinate system dependent optical activity depolarizing diffuser efficient nondepolarizing diffuser electric-field vector equation 12 Ey(sin2a flow features flow visualization function of position holo hologram is recordable hologram-recording plane holographic flow HOLOGRAPHY THROUGH OPTICALLY holography through stressed intensity laser Lewis Research Center light wave machined polysulfone windows NASA National Aeronautics object beam object illumination ol cos ol OPTICALLY ACTIVE WINDOWS orthogonally polarized reference Performing Organization photographic plate polarimeter polarized reference beams Polaroid polysulfone windows intended positionally dependent optical principal axes proportionality constant recorded through stressed recording plane reference waves reticle Security Classif show no stress shown in figure single-stage-compressor test rig small window Space Administration statistical averaging strain distributions stress pattern stressed windows turbomachinery unit vectors virtual image visible in fig wave is chosen wave reconstructs y-polarized