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Proceedings Paper

ZIMPOL-3: a powerful solar polarimeter
Author(s): Renzo Ramelli; Silvano Balemi; Michele Bianda; Ivan Defilippis; Luca Gamma; Stephan Hagenbuch; Marco Rogantini; Peter Steiner; Jan O. Stenflo
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Paper Abstract

The area of high precision solar spectropolarimetry has made great advances in recent years and the Zurich IMaging POLarimeter (ZIMPOL) systems have played a major role in that. ZIMPOL reaches a polarimetric accuracy of 10-5 by using fast (kHz) polarization modulation/demodulation of the light beam in combination with large-area array detectors. A new generation of improved cameras (ZIMPOL-3) are being implemented for the scientific observations at the solar observatory at Istituto Ricerche Solari Locarno. The new system is based on a flexible and compact modular design, which easily adapts to new applications. A faster electronics and new sensors with higher quantum efficency compared to the previous ZIMPOL versions, allow to achieve a better overall efficency. Future plans include observing campaigns at foremost large telescopes and the exploration of new technologies (e.g. CMOS).

Paper Details

Date Published: 15 July 2010
PDF: 12 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77351Y (15 July 2010); doi: 10.1117/12.857120
Show Author Affiliations
Renzo Ramelli, Istituto Ricerche Solari Locarno (Switzerland)
Silvano Balemi, Scuola Univ. Professionale della Svizzera Italiana (Switzerland)
Michele Bianda, Istituto Ricerche Solari Locarno (Switzerland)
Ivan Defilippis, Scuola Univ. Professionale della Svizzera Italiana (Switzerland)
Luca Gamma, Scuola Univ. Professionale della Svizzera Italiana (Switzerland)
Stephan Hagenbuch, ETH Zürich (Switzerland)
Marco Rogantini, Scuola Univ. Professionale della Svizzera Italiana (Switzerland)
Peter Steiner, ETH Zürich (Switzerland)
Jan O. Stenflo, Istituto Ricerche Solari Locarno (Switzerland)
ETH Zürich (Switzerland)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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