ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The methane-stabilized helium-neon laser1 at ser1 t 3.39 m is one of growing group of stabilized lasers recommended for use as wavelength standards2. Although it lacks visible radiation, it h s high degree of reproducibility1,3,4, approaching 1 part in 1011, and its frequency has been directly ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/285388a0
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