A Theoretical Investigation of Surface‐enhanced Sum‐frequency Generation |
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| Authors: | Y L Yeh J Lei S Y Chen A H H Chang C K Lin R X He S H Lin |
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| Institution: | 1. Department of Applied Chemistry, National Chiao‐Tung University, Hsin‐Chu, Taiwan, Tel: +886‐3‐5712121#56591;2. Fax: +886‐3‐5723764;3. College of Chemistry and Chemical Engineering, Southwest University, Chong Qing, Republic of China 400715;4. Department of Chemistry, National Tung‐Hwa University, Hwa‐Lien, Taiwan;5. National Taiwan University, Taipei, Taiwan;6. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan |
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| Abstract: | Following the surface enhanced Raman scattering (SERS), we shall investigate the possibility of observing surface‐enhanced sum‐frequency generation (SESFG), which refers to the transformation of ordinary vibrational SFG (i.e. singly resonant) into SESFG. Two mechanisms of SESFG will be studied; one is due to the transformation of singly‐resonant vibrational SFG into doubly resonant vibrational SFG (that is, both vibrationally resonant and Raman‐scattering resonant) and the other is due to the enhancement of the polarizability in addition to the original vibrational resonance in vibrational SFG. |
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| Keywords: | Sum‐frequency generation SFG Surface‐enhanced sum‐frequency generation |
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