Comparative Study of LiNbO3 and Servo Controlled Air Gap Fabry-Perot Etalons for Solar Application |
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Authors: | Choudhary Debi Prasad Sanjay Gosain |
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Institution: | (1) A unit of Physical Research Laboratory, Udaipur Solar Observatory, Off Bari Road, Dewali, P.B. No. 198, Udaipur, 313001, India |
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Abstract: | In this note, we compare the LiNbO3 and Piezo-Electrically(PE) servo controlled air gap Fabry-Perot etalons for observing the Sun. An identical test setup was
used to evaluate the instrumental parameters of the two etalons. It is found that for the etalons with similar finesse the
advantage of using PE Etalons is tunability over entire Free Spectral Range. On the other hand, the LiNbO3 etalons have advantage of wider acceptance angle.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Sun: Magnetic Field – Sun: Fabry-Perot Etalons Narrow band imaging |
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