Frequency conversion of a 532 nm Nd:YAG laser using a hydrogen Raman shifter
Abstract
Stimulated Raman scattering in hydrogen is used for upward and downward shifting of the second harmonic (532 nm) of a pulsed Nd:YAG laser into the 192.2 nm to 1579.5 nm wavelength region. Experimental results on the dependence of the Stokes and anti-Stokes energy and conversion efficiencies on laser pump energy and hydrogen pressure is presented. Ultraviolet, visible and infrared laser light is generated with energies ranging from a few mJ to tens of μJ.