Knowledge Bank

Laser Stark spectra have been observed between the $337\mu m$ line of the HCN laser and the Stark-shifted spectrum of fully deuterated methyl alcohol $(CD3OD)$. Numerous families of absorptions have been found in both parallel and perpendicular polarizations. A relatively strong transition which shows up at high field has been assigned as the $Jk=97-86A.vt=0$ torsional state. The other two families originating at low field have tentatively been identified as the $JK=183+172F1,vt=0$ and $JK=173+164E1,vt=1$ torsional state.