Line profiles Aluminum plates 2 Appropriate models 2 Astrophysical parameters 2 Astrophysics 2 Blue-shifted 2 Calcium 2 Calibration 2 Calibration method 2 Chromophores 2 Chromospheric lines 2 Confocal microscopy 2 Correction techniques 2 Cut out 2 Detailed models 2 Diffraction-limited resolution 2 Direct calibration 2 Dwell time 2 Equivalent width 2 Fluorescence 2 Fluorescence spectroscopy 2 Fluorescent dyes 2 Focus adjustment 2 Giant stars 2 Globular clusters 2 Globular clusters: general 2 Helium 2 Helium abundance 2 High-resolution spectra 2 Imaging glass 2