Sum-frequency spectroscopic studies of ice interfaces

Raman Spectroscopic Studies of ZnSe/GaAs Interfaces

ZnSe/semi-insulating GaAs interfaces have been studied by observing Photogenerated plasmon – LO (PPL) coupled modes by non-resonant microRaman spectroscopy. The effect of the carriers generated by the focused laser beam was investigated for a series of different thicknesses of ZnSe epitaxial layers. The PPL mode in GaAs is observed in micro-Raman spectra for all samples, but with different magn...

Surface orientation of magainin 2: molecular dynamics simulation and sum frequency generation vibrational spectroscopic studies.

We combined molecular dynamics based free energy calculations with sum frequency generation (SFG) spectroscopy to study the orientational distribution of solvated peptides near hydrophobic surfaces. Using a simplified atomistic model of the polystyrene (PS) surface, molecular dynamics simulations have been applied to compute the orientational probability of an α-helical peptide, magainin 2, wit...

Investigation of Interfaces by Sum-Frequency Generation Vibrational Spectroscopy

Liquid Interfaces Probed by Second-Harmonic and Sum-Frequency Spectroscopy.

D. Chemical Reactions at Interfaces 1348 E. Electrochemistry 1350 F. Some Environmentally Interesting SH Studies 1351 G. Structural Phase Transitions 1351 H. Chiral Interfaces 1353 III. Dynamics at Liquid Interfaces 1354 A. Adsorption Kinetics to Air/Water Interfaces 1354 B. Electron Transfer at a Liquid/Liquid Interface 1355 C. Photoisomerization at Aqueous Interfaces 1355 D. Orientational Rel...

Nanoporous silica-water interfaces studied by sum-frequency vibrational spectroscopy.

Using sum-frequency vibrational spectroscopy, we found that water structure at nanoporous silica/water interfaces depended on the nanoporous film structure. For a periodic, self-assembled nanoporous film with monosized 2 nm pores occupying 20% of the top surface area, the surface vibrational spectrum was dominated by water in contact with silica, bare or covered by silane, at the top surface. I...