2-PHOTON AND 3-PHOTON RESONANT 3RD-HARMONIC GENERATION IN MOLECULAR NITROGEN

Authors
WANG PQ CAO CS XIE XB SUN TH
Citation
Pq. Wang et al., 2-PHOTON AND 3-PHOTON RESONANT 3RD-HARMONIC GENERATION IN MOLECULAR NITROGEN, Chinese Physics Letters, 15(4), 1998, pp. 269-271
Citations number
9
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
15
Issue
4
Year of publication
1998
Pages
269 - 271
Database
ISI
SICI code
0256-307X(1998)15:4<269:2A3R3G>2.0.ZU;2-0
Abstract
Tunalbe coherent extreme ultraviolet radiation has been produced in ni trogen by third harmonic generation (THG) processes enhanced by two-ph oton resonance with the a(1) Pi(g)(v' = 1) state and three-photon reso nance with the c(4)'(1) Sigma(u)(+) (v' = 1) state, respectively. The highly resolved THG spectra imply that THG can be used to probe the hi gher excited states and to detect the rotational population bf a molec ular gas.