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current trends and future prospects
58 Interferometric testing technology developments and applications in Japan
128 Holography of phase objects
aberrations algorithm aperture Appl applications aspheric aspheric surfaces beam splitter camera Cosine Error Deadpath detection detector array determined developed diffraction displacement distance electronic fiber filter frequency shift fringe analysis fringe order fringe pattern function grating heterodyne Hewlett-Packard HOLOCAM hologram holographic interferometry intensity interference fringes interference pattern interferogram interferometric testing laser beam laser diode lens Mark III Interferometer measuring interferometer method metrology microns mirror modulation noise null obtained optical components optical fiber optical path length optical system output performance phase difference phase map phase measurement phase objects phase shift phase step pixel plane plate polarization prism profilometer reconstruction reference beam reference wave refractive refractive index resolution rotating sample schematic sensor shearing interferometer shown in Figure signal spatial speckle spherical SPIE subaperture surface profile system accuracy techniques temperature thermal tilt Twyman-Green Twyman-Green interferometer vibration wavelength Wyant Zygo