Adsorbate vibrational spectroscopy by ir-visible sum-frequency generation using CLIO-FEL: CO from CH3OH on Pt

André Peremans, Abderrahmane TADJEDDINE, R. PRAZERES, F. GLOTIN, D. JAROSZYNSKI, Jean-Michel ORTEGA

Research output: Contribution to journalArticle

Abstract

The use of infrared-FEL allows adsorbate vibrational spectroscopy by IR-visible sum-frequency generation (SFG) beyond the frequency range accessible by benchtop IR lasers. Therefore, we synchronized a frequency doubled mode-locked YAG laser (532 nm) with the CLIO-FEL, which is tuneable from 2 to 17.5 μm. The feasibility is demonstrated by recording SFG-vibrational spectra near 5-μm of the CO adsorbate at the electrochemical interface Pt/HClO4 solution containing CH3OH. These spectra indicate the coexistence of linearly and doubly-bounded species. This work is a preliminary step towards adsorbate SFG-vibrational spectroscopy at longer wavelengths.
Original languageEnglish
Pages (from-to)146-151
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume341
Issue number1-3
DOIs
Publication statusPublished - 1994

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