Nonlinear optical generation with reduced absorption using electric-field coupling in atomic hydrogen
K. Hakuta, L. Marmet, Boris Peter Stoicheff
Resonantly enhanced second-harmonic generation in atomic hydrogen was investigated near 121.6 nm. With the application of a dc electric field, it is shown that coupling of the 2s and 2p states produces resonantly enhanced nonlinear susceptibility and reduced absorption at the second-harmonic wavelength, resulting in an increased net efficiency of the second-harmonic-generation process.
Physical Review A•Apr 1, 1992•83 citations