New cw Optically Pumped Far-Infrared Laser Emissions Generated with a Transverse or ‘Zig-Zag’ Pumping Geometry

Abstract

This work reports the observation of several novel far-infrared laser lines obtained through optical pumping of a gaseous medium using a transverse or zig-zag excitation scheme. In total, about 160 laser emissions with wavelengths up to 1.1 mm have been observed. This includes nine new laser lines detected from CH3OD, CH2 F2, and CD3 I which are reported with their operating pressure, relative power, and wavelengths measured to ± 0.5 μm.