High spectral and spatial resolution images of solar limb and solar disk
VTT - Double-stacked etalons in collimated beam. Finesse of 46 for HR etalon and 36 for LR etalon.
Source : K.G Puschmann et al, The new Göttingen Fabry-Pérot spectrometer for two-dimensional observation of the Sun. A&S 451, 2006.
SST - CRISP SpectroPolarimeter - Double-stacked (high-resolution and low-resolution) etalons in telecentric beam. FHWM = 0.06 A.
Source
: Pereira et al, The apparence of spicules in high resolution observations of Ca H and Ha. Astrophysical Journal, 2016.
Influence of the position of the filter center wavelength within the
Hα line (respectively -0.8 Å, -0.6 Å, -0.4 Å
and line center).
1-m Swedish Solar Telescope, CRISP spectropolarimeter, bandwidth
of 0.06 Å FWHM (obtained by two etalons in telecentric
configuration), adaptive optics and image reconstruction. The field
covers about 70".
Source: Goran Scharmer, Luc Rouppe van der Voort, New Capabilities for
High Resolution Collaborative Studies with the Swedish 1-m Solar
Telescope, The Institute for Solar Physics, Second Hinode Science
Meeting, 2008
https://www.hao.ucar.edu/partnerships/hinode/conference-2008/presentations/Session5/T5-1_scharmer.pdf
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