Direct absorption transitions to highly excited polyads 8, 10, and 12 of methane

D. A. Sadovskií, D. N. Kozlov, and P. P. Radi
Phys. Rev. A 82, 012503 – Published 6 July 2010
PDFHTMLExport Citation

Abstract

We report on the experimental observation of high-resolution rotationally resolved spectra of vibrational polyads 10 and 12 of methane lying approximately halfway to the dissociation energy. The spectra were obtained at 295 K and 124 K and pressures as low as 200 mbar using a highly sensitive laser-induced grating (LIG) technique. The spectra correspond to direct single-photon absorption transitions from the ground state with cross sections as low as 1025 to 1026 cm2 molecule1. We discuss theoretical developments toward the complete analysis of these transitions.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
2 More
  • Received 13 November 2009

DOI:https://doi.org/10.1103/PhysRevA.82.012503

©2010 American Physical Society

Authors & Affiliations

D. A. Sadovskií1,*, D. N. Kozlov2,1,†, and P. P. Radi3,‡

  • 1Département de physique, Université du Littoral Côte d’Opale, F-59140 Dunkerque, France
  • 2A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov St., 119991 Moscow, Russia
  • 3Department of General Energy, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland

  • *sadovski@univ-littoral.fr
  • dnk@kapella.gpi.ru
  • peter.radi@psi.ch

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 82, Iss. 1 — July 2010

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×