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Chemical vapor deposited silicon carbide mirrors for extreme ultraviolet applications

Saha, Timo T.; Leviton, Douglas B.; Fleetwood, Charles M. +5 more

Advances in optical coating and materials technology have made possible the development of instruments with substantially improved efficiency in the extreme ultraviolet (EUV). For example, the development of the chemical vapor deposition (CVD) SiC mirrors provides an opportunity to extend the range of normal-incidence instruments dow to 60 nm. CVD…

Optical design of the coronal diagnostic spectrometer (an instrument on the Solar and Heliospheric Observatory)

Lidiard, Kate A.; Gray, Peter F.

The coronal diagnostic spectrometer (CDS) is one of 12 instruments that form the payload of the joint European Space Agency/National Aeronautics and Space Agency Solar and Heliospheric Observatory, launched in 1995. The CDS was designed and constructed by an international consortium led by the Rutherford Appleton Laboratory, United Kingdom. It is …

Spectral resolution improvement technique for a spectrograph mounting a discrete array detector

Naletto, Giampiero; Pernechele, Claudio; Poletto, Luca +1 more

A new technique has been developed for improving the spectral resolution of spectrographs mounting discrete array detectors. The basic concept is to acquire various spectroscopic images, each one being shifted on the detector by a fraction of the pixel (i.e., the detector resolution element), and to apply suitable numerical procedures in order to …