Vibrational sum frequency generation of aqueous solutions of alcohol

Autor: Shan-Shan Ju, Tzong-Daw Wu, Jung-Yaw Huang, Tai-Huei Wei, Yuh-Lin Yeh, Sheng Hsien Lin
Rok vydání: 2004
Předmět:
Zdroj: CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on Lasers and Electro-Optics (IEEE Cat. No.03TH8671).
DOI: 10.1109/cleopr.2003.1277195
Popis: We measured vibrational spectra of the surface of alcohol (C/sub n/H/sub 2n+1/, n=1 to 3) and water as a binary mixture via sum frequency generation (SFG) in the OH region at the interface between air and liquid phases. Our results conform to a statement that the proportion of water molecules with a free dangling OH bond is about 29 percent at the interface between air and water. We have also demonstrated that a LiNbO/sub 3/ crystal containing -OH can be sufficient for the SFG spectroscopy measurement in OH region regardless of its absorption dip.
Databáze: OpenAIRE