Frequency measurement of the 260-THz (115-μm) He–Ne laser
Open Access
- 1 May 1979
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 4 (5) , 129-130
- https://doi.org/10.1364/ol.4.000129
Abstract
Absolute infrared frequency measurement has been extended to 260 THz with the measurement of the strong 1.15-μm laser line in 20Ne. The frequency was synthesized in nonlinear crystals of CdGeAs2 and Ag3AsS3 from stabilized CO2 lasers and the 1.5-μm laser line in 20Ne. The measured frequency is ν20Ne, 1.15μm = 260.103 284(30) THz.Keywords
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