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84894004578
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note
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The purpose of a diversity function in wavefront sensing is to "spread out" the optical response to expose aberration information. Since defocus has only angular dependence, no one part of the point-spread function is emphasized more than any other.
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3
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0027585768
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Hubble space telescope characterized by using phase-retrieval algorithms
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Comparison of phase diversity and curvature wavefront sensing
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J. R. Fienup, B. J. Thelen, R. G. Paxman, and D. A. Carrara, "Comparison of phase diversity and curvature wavefront sensing," in Adaptive Optical System Technologies, D. Bonaccini and R. Tyson, eds., Proc. SPIE 3353, 930-940 (1998).
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0001152746
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0000956075
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0042374285
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14
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0041372513
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Cramér-Rao analysis for phase-diverse-phase-retrieval: Diversity functions and broadband phase-retrieval
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sponsored by Kamuela Optical Associates, Kohala Coast, Hawaii, November 13-16
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B. H. Dean, "Cramér-Rao analysis for phase-diverse-phase-retrieval: diversity functions and broadband phase-retrieval," presented at the Wavefront Sensing & Controls Conference, sponsored by Kamuela Optical Associates, Kohala Coast, Hawaii, November 13-16, 2000.
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Wavefront Sensing & Controls Conference
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Dean, B.H.1
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15
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0020173780
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84893997864
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Phase-retrieval performance as a function of defocus and aberration frequency
-
NASA/Goddard Space Flight Center, Greenbelt, Md., August 20
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B. H. Dean, "Phase-retrieval performance as a function of defocus and aberration frequency," presented for the NASA Next Generation Space Telescope Technical Memoranda, NASA/Goddard Space Flight Center, Greenbelt, Md., August 20, 2000.
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NASA Next Generation Space Telescope Technical Memoranda
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Dean, B.H.1
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19
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84894012202
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Some considerations regarding the propagation of spectral power from pupil to defocused image planes
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NASA/Goddard Space Flight Center, Greenbelt, Md., April 10
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C. Bowers, "Some considerations regarding the propagation of spectral power from pupil to defocused image planes," presented for the NASA Next Generation Space Telescope Technical Memoranda, NASA/Goddard Space Flight Center, Greenbelt, Md., April 10, 2001.
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Bowers, C.1
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20
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0042374287
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Fresnel zone propagation of spectral power with applications to image-based wavefront sensing
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NASA/Goddard Space Flight Center, Greenbelt, Md., July 8
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B. H. Dean, "Fresnel zone propagation of spectral power with applications to image-based wavefront sensing," presented for the NASA Next Generation Space Telescope Technical Memoranda, NASA/Goddard Space Flight Center, Greenbelt, Md., July 8, 2001.
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(2001)
NASA Next Generation Space Telescope Technical Memoranda
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Dean, B.H.1
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21
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84893989073
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note
-
The frequency content in this instance is associated with the finite spacing of actuators placed in a periodic array behind a thin mirror face sheet. Ironically, the "print-through" associated with such systems is a result of the high-frequency correction capability of these many-actuator control systems. For example, for a Xinetics 349 channel deformable mirror, there are 21 actuators spanning the clear aperture, yielding approximately 10 cycles/aperture along a single spatial-frequency direction.
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22
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84893994492
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Wavefront sensing for deployable-optic systems
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sponsored by Kamuela Optical Associates, Kohala Coast, Hawaii, November 13-16
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R. Paxman and B. Thelen, "Wavefront sensing for deployable-optic systems," presented at the Wavefront Sensing and Controls Conference, sponsored by Kamuela Optical Associates, Kohala Coast, Hawaii, November 13-16, 2000.
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(2000)
Wavefront Sensing and Controls Conference
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Paxman, R.1
Thelen, B.2
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24
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84893999376
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M. S. thesis, directed by T. Schulz (Michigan Technological University, Houghton, Mich.)
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W. Sun, "Cramér-Rao lower bound analysis on estimation accuracy for phase retrieval," M. S. thesis, directed by T. Schulz (Michigan Technological University, Houghton, Mich., 1998).
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Sun, W.1
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A practical algorithm for the determination of phase from image and diffraction plane pictures
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A method for the solution of the phase problem in electron microscopy
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Wavefront reconstruction from defocused images and the testing of ground-based optical telescopes
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Combined approach to the Hubble space telescope wavefront distortion analysis
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Image inversion analysis of the Hubble space telescope
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Jet Propulsion Laboratory, Pasadena, Calif.
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J. R. Fienup, J. C. Marron, R. G. Paxman, T. J. Schulz, J. H. Seldin, and B. Thelen, "Image inversion analysis of the Hubble Space Telescope," in Final Report: Jet Propulsion Laboratory Contract 958892 on the Hubble Space Telescope Optical Telescope Assembly Analysis, August 1991 (Jet Propulsion Laboratory, Pasadena, Calif., 1991).
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Fienup, J.R.1
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84893994075
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DCATT wavefront sensing and optical control study
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February 22
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R. G. Lyon, "DCATT wavefront sensing and optical control study," Developmental Comparative Active Telescope Test-bed Rep. WFSC-0001, February 22, 1999, http://jansky.gsfc.nasa.gov/OSCAR/.
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Space Telescopes and Instruments V, P. Bely and J. Breckinridge, eds.
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D. Redding, S. Basinger, A. Lowman, F. Shi, P. Bely, R. Burg, and G. Mosier, "Wavefront sensing and control for a Next Generation Space Telescope," in Space Telescopes and Instruments V, P. Bely and J. Breckinridge, eds., Proc. SPIE 3356, 758-772 (1998).
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D. Redding, S. Basinger, A. Lowman, F. Shi, C. Bowers, L. Burns, P. Davila, B. Dean, M. Fitzmaurice, G. Mosier, B. Perkins, P. Petrone, T. Norton, M. Wilson, and L. Wheeler, "Wavefront control for a segmented deployable space telescope," in UV, Optical, and IR Space Telescopes and Instruments, J. B. Breckinridge and P. Jakobsen, eds., Proc. SPIE 4013, 546-558 (2000).
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Dean, B.8
Fitzmaurice, M.9
Mosier, G.10
Perkins, B.11
Petrone, P.12
Norton, T.13
Wilson, M.14
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33
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White-light phase-retrieval analysis
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NASA/Goddard Space Flight Center, Greenbelt, Md., October 11
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B. H. Dean, "White-light phase-retrieval analysis," presented for the NASA Next Generation Space Telescope Technical Memoranda, NASA/Goddard Space Flight Center, Greenbelt, Md., October 11, 2000.
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Phase retrieval with the transport-of-intensity equation: Matrix solution with the use of Zernike polynomials
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T. E. Gureyev, A. Roberts, and K. A. Nugent, "Phase retrieval with the transport-of-intensity equation: matrix solution with the use of Zernike polynomials," J. Opt. Soc. Am. A 12, 1932-1941 (1995).
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84894009966
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Deformable mirror optical calibration and test results
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Woods Hole, Mass., September 13-16
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B. H. Dean and R. Boucarut, "Deformable mirror optical calibration and test results," presented at the Next Generation Space Telescope Science and Technology Exposition, Woods Hole, Mass., September 13-16, 1999.
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Next Generation Space Telescope Science and Technology Exposition
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Boucarut, R.2
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36
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Reconstruction of Hubble space telescope wavefront distortion from stellar images taken at various focal positions
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Jet Propulsion Laboratory, Pasadena, Calif.
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C. Roddier and F. Roddier, "Reconstruction of Hubble Space Telescope wavefront distortion from stellar images taken at various focal positions," in Final Report: Jet Propulsion Laboratory Contract 958893 on Hubble Space Telescope Optical Telescope Assembly Analysis, May 1991 (Jet Propulsion Laboratory, Pasadena, Calif., 1991), pp. 2-3.
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Interferogram evaluation and wavefront fitting
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D. Malacara, ed. (Wiley-Interscience, New York)
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Horizontal line-of-sight turbulence over near-ground paths and implications for adaptive optics corrections in laser communications
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Levine, B.M.1
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Landers, F.6
Bruno, T.7
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39
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84893990818
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-
note
-
If inaccurate pupil data are applied in the iterative-transform sense (Fig. 1), the pupil amplitude and the phase information become mixed, resulting in artificial aberrations in the phase estimate. For example, a pupil amplitude function consisting of a shifted central obscuration in a two-mirror system can lead to phase-retrieval estimates with artificial coma. But this ambiguity is resolved when utilizing diversity images on both sides of focus since the defocused PSF is asymmetric about focus (for a shifted central obscuration), while true coma produces a symmetric PSF about focus.
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