Solar polarimetry close to the diffraction limit

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 4843, Issue , 2002, Pages 100-111

  Keller, Christoph U ^a  

^a NATIONAL SOLAR OBSERVATORY   (United States)

Author keywords

Adaptive optics; Image reconstruction; Polarimetry; Sun

Indexed keywords

DIFFRACTION; PHOTONS; POLARIMETERS; SOLAR SYSTEM; TELESCOPES;

SOLAR TELESCOPES;

ASTRONOMY;

EID: 0038754171     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.459286     Document Type: Conference Paper

References (32)

1. R.F. Stein, Å. Nordlund, "Realistic solar convection simulations", Solar Physics 192, pp. 91-108, 2000.
2. S.L. Keil, T. Rimmele, C.U. Keller, "Design and Development of the Advanced Technology Solar Telescope", SPIE 4853, submitted, 2002.
3. T.R. Rimmele, "Solar adaptive optics", SPIE 4007, pp. 218-231, 2000.
4. G.B. Scharmer, M. Shand, M.G. Lofdahl, P.M. Dettori, W. Wei, "Workstation-based solar/stellar adaptive optics system", SPIE 4007, pp. 239-250, 2000.
5. C. Aime, in Proceedings of the 10th Sacramento Peak Summer Workshop, Sunspot, New Mexico, pp. 127, 1989.
6. O. von der Lühe, "High spatial resolution solar observations", Proceedings of the 10th Sacramento Peak Summer Workshop, Sunspot, New Mexico, pp. 147, 1989.
7. A. Labeyrie, "Attainment of Diffraction Limited Resolution in Large Telescopes by Fourier Analysing Speckle Patterns in Star Images", A&A 6, pp. 85-87, 1970.
8. K.T. Knox, B.J. Thompson, "Recovery of images from atmospherically degraded short-exposure photographs", ApJ 193, L45-L48, 1974.
9. O. von der Lühe, "Speckle imaging of solar small scale structure. I - Methods", A&A 268,374-390,1993.
10. A.W. Lohmann, G. Weigelt, B. Wirnitzer, "Speckle masking in astronomy - Triple correlation theory and applications", Appl. Optics 22,pp. 4028-4037, 1983.
11. E. Pehlemann, O. von der Lühe, "Technical aspects of the speckle masking phase reconstruction algorithm", A&A 216, 337-346, 1989.
12. C.R. de Boer, F. Kneer, "Speckle observations of abnormal solar granulation", A&A 264, pp. L24-L26, 1992.
13. O. von der Lühe, private communication, 2001.
14. M.G. Löfdahl, G.B. Scharmer, "Wavefront sensing and image restoration from focused and defocused solar images", A&ASS 107, pp. 243-264, 1994.
15. R.G. Paxman, J.H. Seldin, "Fine-resolution astronomical imaging with phase-diverse speckle", SPIE 2029, pp. 287-298, 1993.
16. J.H. Seldin, R.G. Paxman, "Phase-diverse speckle reconstruction of solar data", SPIE 2302, pp. 268-280, 1994.
17. R.G. Paxman, J.H. Seldin, M.G. Löfdahl, G.B. Scharmer, C.U. Keller, "Evaluation of Phase-Diversity Techniques for Solar-Image Restoration", ApJ 466, pp. 1087-1099, 1996.
18. J.W. Harvey, in Small Scale Magnetic Flux Concentrations in the Solar Photosphere. Vandenhoeck and Ruprecht, Göttingen, pp. 25, 1986.
19. C.U. Keller, O. von der Lühe, "Solar speckle polarimetry", A&A 261, pp. 321-328, 1992.
20. C.U. Keller, "Resolution of magnetic flux tubes on the sun", Nature 359, pp. 307-308, 1992.
21. C.U. Keller, "Properties of solar magnetic fields from speckle polarimetry", Reviews in Modern Astronomy 8, pp. 27-59, 1995.
22. C.U. Keller, B.P. Wilton, "Properties of Solar Network Magnetic Elements from Speckle Polarimetry", ApJ, in preparation.
23. 23. R. Petrov, F. Roddier, C. Aime," Signal-to-noise ratio in differential speckle interferometry", JOSA A3, pp. 634-644, 1986
24. J.H. Seldin, R.G. Paxman, D.A. Carrara, C.U. Keller, T.R. Rimmele, "Deconvolution of Narrow-Band Solar Images Using Aberrations Estimated from Phase-Diverse Imagery", SPIE 3815, pp. 155-163, 1999.
25. T.R. Rimmele, "Solar adaptive optics", SPIE 4007, pp. 218-231, 2000.
26. H.P. Povel, H. Aebersold, J.O. Stenflo, "Charge Coupled Device Image Sensor as a Demodulator in a 2D Polarimeter with piezo-elastic Modulators", Appl. Optics 29, pp. 1186-1190, 1990.
27. H.P. Povel, "Imaging Stokes polarimetry with piezoelastic modulators and charge-coupled-device image sensors", Opt. Eng. 34, pp. 1870-1878, 1995.
28. J.O. Stenflo, C.U. Keller, H.P. Povel, "Demodulation of all Four Stokes Parameters With a Single CCD. ZIMPOL II Conceptual Design", LEST Technical Report 54. University of Oslo, 1992.
29. A.M. Gandorfer, H.P. Povel, "First observations with a new imaging polarimeter", A&A 328, pp.381-389, 1997.
30. M.T. Gale, J. Pedersen, H. Schuetz, H. Povel, A. Gandorfer, P. Steiner, P. Bernasconi, "Active alignment of replicated microlens arrays on a charge-coupled device imager", Opt. Eng. 36, pp. 1510-1517, 1997.
31. B.W. Lites, Proceedings of the Eleventh Sacramento Peak Summer Workshop, New Mexico, 1991.
32. C.U. Keller, A. Johannesson, "Speckle spectrography of extended objects", A&ASS 110, pp. 565-571, 1995.