Phonon-Induced Fine Structure of Excitons in Solid Nitrogen

E. Boursey; V. Chandrasekharan; P. Gürtler; E. E. Koch; P. Kunsch; V. Saile

doi:10.1103/PhysRevLett.41.1516

Phonon-Induced Fine Structure of Excitons in Solid Nitrogen

E. Boursey, V. Chandrasekharan, P. Gürtler, E. E. Koch, P. Kunsch, and V. Saile

Phys. Rev. Lett. 41, 1516 – Published 20 November 1978

Abstract

Results of quantitative high-resolution absorption measurements in the range of the $w {}^{1}Δ_{u} \leftarrow X {}^{1}Σ_{g}^{+}$ and $a {}^{1}Π_{g} \leftarrow X {}^{1}Σ_{g}^{+}$ derived exciton progressions in solid $N_{2}$ are reported. The newly observed detailed fine structure of the vibrational bands is analyzed in terms of a sharp zero-phonon line and phonon-assisted exciton transitions. A theoretical analysis based on a strong-exciton-phonon-coupling model leads to good agreement with the observed experimental line shape.

Received 19 July 1978

DOI:https://doi.org/10.1103/PhysRevLett.41.1516

Authors & Affiliations

E. Boursey and V. Chandrasekharan

Laboratoire des Interactions Moléculaires et Hautes Pressions, Centre National de la Recherche Scientifique, Université Paris-Nord, F-93440 Villetaneuse, France

P. Gürtler