13CH3OH far-infrared laser: newly discovered lines predictions and assignments

摘要

Abstract: We report 24 new laser lines from $+13$/CH$-3$/OH methanol when pumped by a cw-CO$-2$/ laser. The majority of the lines are pumped by the 10R and 10SR bands of the CO$-2$/ laser. Two are pumped by the 9HP hot-band CO$-2$/ line. We measured 21 laser frequencies in this molecule; 18 from new lines and three from previously reported lines. We also remeasured and corrected the frequency of the 9P(44) pumped line as 3 378 404.87 MHz. Assignment of two lines: 10SR(17) - 77.5758 cm$+$MIN@1$/ and 10R(50) - 119.3020 cm$+$MIN@1$/, and predictions for other potential FIR laser lines with these two pumps are also included in this work. !6