Abstract
FOLLOWING the first observations of stimulated emission in the far infra-red spectra of molecules1 the experimental techniques were refined and some further observations which were made at the National Physical Laboratory are reported here. In getting these, new interferometer arrangements have been developed which give spectral resolution better than 0.001 cm−1 in the 100µ region.
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References
Crocker, A., Gebbie, H. A., Kimmitt, M. F., and Mathias, L. E. S., Nature, 201, 250 (1964).
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GEBBIE, H., FINDLAY, F., STONE, N. et al. Interferometric Observations on Far Infra-red Stimulated Emission Sources. Nature 202, 169–170 (1964). https://doi.org/10.1038/202169a0
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DOI: https://doi.org/10.1038/202169a0
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