Frequency Measurement of Far-Infrared Laser Emissions Generated by Methanol Isotopologues
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An optically pumped molecular laser system has been used to generate far-infrared (FIR) radiation with a variety of methanol isotopologues as its laser medium. Once detected, the frequencies of these laser emissions were measured using a heterodyne technique to a one-sigma fractional uncertainty of ±5 parts in 10 7 . In total, 68 FIR laser frequencies, ranging from 0.417 to 2.611 THz, have been measured for the first time. These laser emissions were generated by six isotopic forms of methanol, CD 3 OH, CH 3 OD, CH 2 DOH, CHD 2 OH, CD 3 OD, and CH 3 17 OH. Two of these laser emissions were discovered during this investigation and are reported with their optimal operating pressure, polarization with respect to the CO 2 pump laser, and output power.
Jackson, M., Smith, M., Gerke, C., & Barajas, J. (2015). Frequency Measurement of Far-Infrared Laser Emissions Generated by Methanol Isotopologues. IEEE Journal of Quantum Electronics, 51(4), 1–5. https://doi.org/10.1109/jqe.2015.2398352
IEEE Journal of Quantum Electronics
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