Ferroelectric retarders as an alternative to piezoelastic modulators for use in solar Stokes vector polarimetry

Optical Engineering

Volumn 38, Issue 8, 1999, Pages 1402-1408

  Gandorfer, Achim M ^a  

^a ETH ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

FERROELECTRIC MATERIALS; LIGHT MODULATION; LIGHT POLARIZATION; LIQUID CRYSTALS; POLARIMETERS;

PIEZOELECTRIC MODULATORS; SOLAR STOKES VECTOR POLARIMETRY;

LIGHT MODULATORS;

EID: 0032633525     PISSN: 00913286     EISSN: None     Source Type: Journal    
DOI: 10.1117/1.602183     Document Type: Article

References (21)

1. J. O. Stenflo, C. U. Keller, and A. M. Gandorfer, "Differential Hanle effect and the spatial variation of turbulent magnetic fields on the sun," Astron. Astrophys. 329, 319-328 (1998).
2. H. P. Povel, H. Aebersold, and J. O. Stenflo, "Charge coupled device image sensor as a demodulator in a 2D polarimeter with piezo-elastic modulators," Appl. Opt. 29, 1186-1190 (1990).
3. C. U. Keller, F. Aebersold, U. Egger, H. P. Povel, P. Steiner, and J. O. Stenflo, "Zurich imaging Stokes polarimeter ZIMPOL I - design review," LEST Foundation Technical Report No. 53, Institute of Theoretical Astrophysics, University of Oslo (1992).
4. J. O. Stenflo, Solar Magnetic Fields - Polarized Radiation Diagnostics, Kluwer, Dordrecht (1994).
5. H. P. Povel, C. U. Keller, and L-A. Yadigaroglu, "Two-dimensional polarimeter with a charge coupled device image sensor and a piezoelastic modulator," Appl. Opt. 33, 4254-4260 (1994).
6. H. P. Povel, "Imaging Stokes polarimetry with piezoelastic modulators and charge-coupled-device image sensors," Opt. Eng. 34, 1870-1878 (1995).
7. C. U. Keller, F.-L. Deubner, U. Egger, B. Fleck, and H. P. Povel, "On the strength of intranetwork fields," Astron. Astrophys. 286, 626-634 (1994).
8. I. Rüedi, C. U. Keller, and S. K. Solanki, "Measurement of the full Stokes vector of He 1 10830 Å," Sol. Phys. 164, 265-275 (1996).
9. J. O. Stenflo and C. U. Keller, "New window for spectroscopy," Nature (London) 382, 588 (1996).
10. J. O. Stenflo and C. U. Keller, "The second solar spectrum. A new window for diagnostics of the sun," Astron. Astrophys. 321, 927-934 (1997).
11. J. O. Stenflo, M. Bianda, C. U. Keller, and S. K. Solanki, "Center-to-limb variation of the second solar spectrum," Astron. Astrophys. 322, 985-994 (1997).
12. P. N. Bernasconi, C. U. Keller, S. K. Solanki, and J. O. Stenflo, "Complex magnetic fields in an active region," Astron. Astrophys. 329, 704-720 (1998).
13. A. M. Gandorfer and H. P. Povel, "First observations with a new imaging polarimeter," Astron. Astrophys. 328, 381-389 (1997).
14. J. O. Stenflo, C. U. Keller, and H. P. Povel, "Demodulation of all four Stokes parameters with a single CCD. ZIMPOL II - conceptual design," LEST Foundation Technical Report No. 54, Institute of Theoretical Astrophysics, University of Oslo (1992).
15. M. T. Gale, J. Pedersen, H. Schütz, H. P. Povel, A. M. Gandorfer, P. Steiner, and P. N. Bernasconi, "Active alignment of replicated microlens arrays on a charge coupled device imager," Opt. Eng. 36, 1510-1517 (1997).
16. J. C. Kemp, "Piezo-optical birefringence modulators," J. Opt. Soc. Am. 59, 950-954 (1969).
17. B. Bahadur, Ed., Liquid Crystals: Applications and Uses, Vols. 1, 2, World Scientific, Teaneck, NJ (1990).
18. J. O. Stenflo, "Solar magnetic and velocity-field measurements: new instrumental concepts," Appl. Opt. 24, 1267-1278 (1984).
19. J. O. Stenflo, "Magnetic-field structure of the photospheric network," Sol. Phys. 32, 41-63 (1973).
20. M. Stix, The Sun, Springer, Berlin (1989).
21. V. Martinez-Pillet and J. Sanchez Almeida, "A proposal for a low instrumental polarization coudé telescope," Astron. Astrophys. 252, 861-865 (1991).