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Polarisation optics

There are four optical components immediately above the dekker slide and immediately below the slit assembly which are used exclusively for polarimetric observations. The principles behind spectropolarimetric observing, and the ISIS/FOS-II system, are described in detail in The ISIS Spectropolarimetry Users' manual, by J. Tinbergen and R.G.M. Rutten. Briefly the polarisation optics consist of:-



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Up: ISIS and FOS-II Spectrographs
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Next Page: The slit area


Fri Jan 7 15:34:48 GMT 1994