Phys. Rev. Lett. 25, 1397–1399 (1970)Extension of Microwave Absorption Spectroscopy to 0.37-mm WavelengthReceived 3 September 1970; published in the issue dated 16 November 1970 High-resolution sweep spectroscopy has been extended to submillimeter wavelengths as short as 0.37 mm. The sensitivity of microwave spectroscopy in the submillimeter region (0.37 to 1 mm) has been improved by more than an order of magnitude. The highest-frequency spectral lines measured are the J=6→7 transition of 12C16O at 806 651.719 MHz and the J=66→67 transition of 16O12C32S at 813 353.706 MHz. The rotational constant B0 for DF is observed to be 325 584.96 MHz. © 1970 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.25.1397
DOI:
10.1103/PhysRevLett.25.1397
PACS:
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