A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID

doi:10.1088/1004-423X/2/12/006

中国物理B ›› 1993, Vol. 2 ›› Issue (12): 925-929.doi: 10.1088/1004-423X/2/12/006

A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID

潘多海¹, 李祥生¹, 苗润才¹, 郇宜贤¹, 张鹏翔²

(1)Department of Physics, Shaanxi Normal University, Xi'an 710062, China; (2)Institute of Physics, Academia Sinica, Beijing 100080, China

收稿日期:1992-11-17 出版日期:1993-12-20 发布日期:1993-12-20
基金资助:
Project supported by the National Natural Science Foundation of China.

A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID

PAN DUO-HAI (潘多海)^a, ZHANG PENG-XIANG (张鹏翔)^b, LI XIANG-SHENG (李祥生)^a, MIAO RUN-CAI (苗润才)^a, HUAN YI-XIAN (郇宜贤)^a

^a Department of Physics, Shaanxi Normal University, Xi'an 710062, China; ^b Institute of Physics, Academia Sinica, Beijing 100080, China

Received:1992-11-17 Online:1993-12-20 Published:1993-12-20
Supported by:
Project supported by the National Natural Science Foundation of China.

摘要/Abstract

摘要： 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.

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.

中图分类号: (Adsorption kinetics ?)

68.43.Mn

82.70.Dd (Colloids) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation) 78.30.-j (Infrared and Raman spectra)

潘多海, 张鹏翔, 李祥生, 苗润才, 郇宜贤. A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID[J]. 中国物理B, 1993, 2(12): 925-929.

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[J]. Acta Physica Sinica (Overseas Edition), 1993, 2(12): 925-929.

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A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID

A STUDY ON SURFACE-ENHANCED HYPER-RAMAN SCATTERING OF BASIC FUCHSIN ADSORBED ON THE SILVER COLLOID

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