Near-resonant rovibronic Raman scattering from 0g + (bb) valence state via the D0u + ion-pair state in iodine molecule

Abstract

Locate full-text(opens in a new window)|View at Publisher| Export | Download | Add to List | More... Optics and Spectroscopy (English translation of Optika i Spektroskopiya) Volume 121, Issue 6, 1 December 2016, Pages 798-803 Near-resonant rovibronic Raman scattering from 0g + (bb) valence state via the D0u + ion-pair state in iodine molecule (Article) Baturo, V.V.a, Cherepanov, I.N.a, Lukashov, S.S.a, Petrov, A.N.ab, Poretsky, S.A.a, Pravilov, A.M.a a Department of Physics, St. Petersburg University, 7/9 Universitetskaya nab., St. Petersburg, Russian Federation b Russian Research Centre Kurchatov Institute, Gatchina, Leningrad oblast, Russian Federation View references (35) Abstract Near-resonant Raman scattering from the electronic excited I2(0g+(bb)→hvD0u+→X0g+) state via the intermediate ion-pair D0u + state to the X one is observed for the first time. The Raman scattering follows a laser pulse. Its intensity IR is inversely proportional to the squared value of detuning from the resonant D, 22, 51 ← 0g +(bb), 7, 52 transition, (Δν2)2, according to the theory of near-resonant Raman scattering. The ratio of Raman D → X scattering intensity to that of the D0u +, νD = 22, JD = 51 → X0g + luminescence, IR/ID‒X < 1.5 × 10–4 for Δν2 > 0.5 cm–1. The Raman and luminescence spectra are found to be identical. © 2016, Pleiades Publishing, Ltd.