Frequency-modulation transient absorption spectrum of the HCCI A<--X transition

Bor-Chen Chang; Trevor J. Sears

doi:10.1117/12.220860

18 September 1995 Frequency-modulation transient absorption spectrum of the HCCI A<--X transition

Bor-Chen Chang, Trevor J. Sears

Proceedings Volume 2548, Laser Techniques for State-Selected and State-to-State Chemistry III; (1995) https://doi.org/10.1117/12.220860
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The rotationally resolved spectrum of the HCCl A¹A' implied by X¹A' transition at near infrared (IR) wavelengths was obtained at Doppler- limited resolution using a combination of transient absorption and frequency modulation (FM) techniques. The analysis of the observed spectrum reveals perturbations arising from both the Renner-Teller effect and the singlet-triplet interaction between these states and the low-lying a³A' state as well as information concerning the geometry and the vibrational structure in the excited singlet state.

Citation Download Citation

Bor-Chen Chang and Trevor J. Sears "Frequency-modulation transient absorption spectrum of the HCCI A<--X transition", Proc. SPIE 2548, Laser Techniques for State-Selected and State-to-State Chemistry III, (18 September 1995); https://doi.org/10.1117/12.220860

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