Cost Effective Scalable Optically Pumped Molecular Laser

An optically pumped, For laser was demonstrated operating at 4.0 micrometers. This is the first demonstration of an HBr laser by direct optical pumping of the 0 right arrow 3 vibrational overtone band at 1.34 micrometers. An injection locked, temperature tuned Nd: YAG laser was used as the optical pump source. Lasing was achieved in a cell of HRr maintained at 100 Torr. potential for scaling to higher pulse energies has been demonstrated. The HBr laser has potential use as a source for infrared countermeasures.