Chinese Journal of Chemical Physics, Volume. 33, Issue 5, 532(2020)
Film Thickness and Surface Plasmon Tune the Contribution of SFG Signals from Buried Interface and Air Surface†
Fig. 1. A schematic of the near-total-internal-reflection geometry.
Fig. 2. The SFG spectra of the carbonyl groups of CaF2 substrate-supported PMMA films prepared with different concentration (0.1 wt%, 0.25 wt%, 0.5 wt%, 1.0 wt%, and 2.0 wt%). (a) ssp and (b) ppp.
Fig. 3. The SFG spectra in the C-H stretching region of CaF2 substrate-supported PMMA films prepared with different concentrations (0.1 wt%, 0.25 wt%, 0.5 wt%, 1.0 wt%, and 2.0 wt%). (a) ssp and (b) ppp.
Fig. 4. The fitting strength ratios of (a) $\chi _{\textrm{Peak1}}^{(2)}/\chi _{\textrm{Peak2}}^{(2)}$ and (b) $\chi _{{\rm{ppp}}}^{(2)}/\chi _{{\rm{ssp}}}^{(2)}$ are plotted against solution concentrations used in film preparation.
Fig. 5. (a) The relation between the
Fig. 6. The SFG spectra of the carbonyl groups of CaF2-Au nanorod-supported PMMA films prepared with different concentration (0.1 wt%, 0.25 wt%, 0.5 wt%, 1.0 wt%, and 2.0 wt%). (a) ssp and (b) ppp.
Fig. 7. The fitting strength ratio of $\chi _{\textrm{Peak1}}^{(2)}/\chi _{\textrm{Peak2}}^{(2)}$ is plotted against solution concentrations used in film preparation. The solid circle represents Au-PMMA films and the empty circle represents the pure PMMA films.
Get Citation
Copy Citation Text
Liang Zhang, Junjun Tan, Quanbing Pei, Shuji Ye. Film Thickness and Surface Plasmon Tune the Contribution of SFG Signals from Buried Interface and Air Surface†[J]. Chinese Journal of Chemical Physics, 2020, 33(5): 532
Received: Jun. 28, 2020
Accepted: Jul. 15, 2020
Published Online: Apr. 21, 2021
The Author Email: Ye Shuji (shujiye@ustc.edu.cn)