Methods of Far Infrared Spectroscopy
The first part of this paper will be a discussion of some of the physical limitations encountered in far infrared spectroscopy using the echellette grating monochromator with filters to separate orders. An inclusive discussion of the methods of far infrared spectroscopy using gratings and filters will be omitted because these methods are well known and used in hundreds of laboratories. In about the past 5 years such spectroscopic systems have become available from instrument manufacturers. The last part of the paper will describe some less common systems using interferometric equipment. There will be an account of some new detectors which can be applied to far infrared spectroscopy.
KeywordsLiquid Helium Temperature Spectral Order Cryogenic Detector Spectroscopic System Separate Order
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