Abstract This paper presents the surface-enhanced hyper-Raman scattering (SEHRS) effect of basic fuchsin (BF) adsorbed on the silver colloid. On the basis of the absorption spectra, a new absorption band at 1000nm has been observed in the case of BF adsorption on the silver colloid, The result indicates that surface electromagnetic enhancement also appears at the incident photon frequency in the near-IR region, which plays an important role in the SEHRS signals. The electromagnetic enhancement factor (2.0×l04) is estimated by using electromagnetic model. Additionally, surface-enhanced second-harmonic generation (SHG) effect in the cases of pure silver colloid, silver colloid plus adsorbed molecule and KCl solution has been detected.
Received: 17 November 1992
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China.
Cite this article:
PAN DUO-HAI (潘多海), ZHANG PENG-XIANG (张鹏翔), LI XIANG-SHENG (李祥生), MIAO RUN-CAI (苗润才), HUAN YI-XIAN (郇宜贤) A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID 1993 Acta Physica Sinica (Overseas Edition) 2 925
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