ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] In heterodyne detection, infrared radiation (possibly from a remote source) is mixed with the output of an intense coherent local oscillator and a signal is detected at the difference frequency (called the intermediate frequency or i.f.). The spectral characteristics of the remote source are ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/253514a0
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