Extreme ultraviolet laser calibration of D ₂ Lyman and Werner transitions

Mourad Roudjane (1) , Toncho Ivanov (2) , Maria Ofelia Vieitez (3, 4) , Kees de Lange (5) , Wan-Ü Lydia Tchang-Brillet (1) , Wim Ubachs (6)

1 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
2 Atomic and molecular Physics
3 Atomic and Molecular Physics
4 Chemical Physics
5 Atomic and molecular Physics
6 Physics

Some 39 lines in the B¹Σ⁺_u- X¹Σ⁺_g (v',0) Lyman bands for v'=9-11, and in the C¹Π_u- X¹Σ⁺_g (0,0) Werner band of the D₂ molecule were measured using a narrowband tunable extreme-ultraviolet laser source, at an unprecedented accuracy of Δλ/λ= 5 *10^(-8). The results bear relevance for future use in the calibration of dense classical spectra obtained for the HD and D₂ hydrogen isotopologues.

Mots clés: Physical Sciences

Domaines: Sciences de l'ingénieur [physics]

Mourad Roudjane, Toncho Ivanov, Maria Ofelia Vieitez, Kees de Lange, Wan-Ü Lydia Tchang-Brillet, et al.. Extreme ultraviolet laser calibration of D ₂ Lyman and Werner transitions. Molecular Physics, 2008, 106 (09-10), pp.1193-1197. ⟨10.1080/00268970802056045⟩. ⟨hal-00513192⟩