Solar Two-Dimensional Spectroscopy with Universal Birefringent Filters and Fabry-Perot Interferometers
Abstract
A bidimensional solar spectrometer that utilizes a Fabry Perot interferometer (FPI) and a universal birefringent filter (UBF) and operates in the 4200-7000. A region of the spectrum is described. The UBF is a chain of nine Lyot elements which are composed of a calcite or quartz retarder plate, a lambda/4 achromatic wave plate, and an input and output linear polarizer. The telecentric optical interference of the system is examined. The high passband wings of the FPI are analyzed; an FPI in double-pass configuration is proposed to lower the FPI passband wings and improve its contrast.
- Publication:
-
High Resolution in Solar Physics
- Pub Date:
- 1985
- DOI:
- 10.1007/BFb0022403
- Bibcode:
- 1985LNP...233..118B
- Keywords:
-
- Astronomical Spectroscopy;
- Birefringent Filters;
- Fabry-Perot Interferometers;
- Solar Spectra;
- Bandpass Filters;
- Optical Paths;
- Solar Instruments;
- Visible Spectrum;
- Astronomy