Molecular Structures on Solid Substrates Probed by Sum Frequency Generation (SFG) Vibration Spectroscopy

2009 ◽  
Vol 38 (5) ◽  
pp. 386-391 ◽  
Author(s):  
Shen Ye ◽  
Masatoshi Osawa
Keyword(s):  
Sum Frequency Generation ◽  
Molecular Structures ◽  
Sum Frequency ◽  
Solid Substrates ◽  
Vibration Spectroscopy ◽  
Frequency Generation

Molecular conformation of DPPC phospholipid Langmuir and Langmuir–Blodgett monolayers studied by heterodyne-detected vibrational sum frequency generation spectroscopy

2017 ◽  
Vol 19 (3) ◽  
pp. 2060-2066 ◽  
Author(s):  
Naoki Takeshita ◽  
Masanari Okuno ◽  
Taka-aki Ishibashi
Keyword(s):  
Molecular Conformation ◽  
Fused Silica ◽  
Langmuir Monolayer ◽  
Sum Frequency Generation ◽  
Molecular Structures ◽  
Sum Frequency ◽  
Langmuir Blodgett ◽  
Silica Substrate ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation

Heterodyne-detected vibrational sum frequency generation spectroscopy was used to investigate molecular structures of DPPC monolayers on water (Langmuir monolayer) and monolayers on a fused silica substrate (Langmuir-Blodgett [LB] monolayer).

Selective Detection of Crystalline Cellulose in Plant Cell Walls with Sum-Frequency-Generation (SFG) Vibration Spectroscopy

2011 ◽  
Vol 12 (7) ◽  
pp. 2434-2439 ◽  
Author(s):  
Anna L. Barnette ◽  
Laura C. Bradley ◽  
Brandon D. Veres ◽  
Edward P. Schreiner ◽  
Yong Bum Park ◽  
...  
Keyword(s):  
Plant Cell ◽  
Cell Walls ◽  
Sum Frequency Generation ◽  
Crystalline Cellulose ◽  
Selective Detection ◽  
Plant Cell Walls ◽  
Sum Frequency ◽  
Vibration Spectroscopy ◽  
Frequency Generation

scholarly journals Applications of sum-frequency generation vibrational spectroscopy in friction interface

Friction ◽  
2021 ◽  
Author(s):  
Zhifeng Liu ◽  
Mengmeng Liu ◽  
Caixia Zhang ◽  
Hongyan Chu ◽  
Liran Ma ◽  
...  
Keyword(s):  
Real Time ◽  
Vibrational Spectroscopy ◽  
Theoretical Background ◽  
Sum Frequency Generation ◽  
Molecular Structures ◽  
Nonlinear Optical Spectroscopy ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Nondestructive Investigation

AbstractSum-frequency generation (SFG) vibrational spectroscopy is a second-order nonlinear optical spectroscopy technique. Owing to its interfacial selectivity, SFG vibrational spectroscopy can provide interfacial molecular information, such as molecular orientations and order, which can be obtained directly, or molecular density, which can be acquired indirectly. Interfacial molecular behaviors are considered the basic factors for determining the tribological properties of surfaces. Therefore, owing to its ability to detect the molecular behavior in buried interfaces in situ and in real time, SFG vibrational spectroscopy has become one of the most appealing technologies for characterizing mechanisms at friction interfaces. This paper briefly introduces the development of SFG vibrational spectroscopy and the essential theoretical background, focusing on its application in friction and lubrication interfaces, including film-based, complex oil-based, and water-based lubricating systems. Real-time detection using SFG promotes the nondestructive investigation of molecular structures of friction interfaces in situ with submonolayer interface sensitivity, enabling the investigation of friction mechanisms. This review provides guidance on using SFG to conduct friction analysis, thereby widening the applicability of SFG vibrational spectroscopy.

A Powerful Nonlinear Optical Technique to Characterize Surfaces and Interfaces Sum Frequency Generation Vibrational Spectroscopy

2012 ◽  
Vol 441 ◽  
pp. 703-707
Author(s):  
Xiao Lin Lu ◽  
Zhan Chen ◽  
Xin Ping Wang
Keyword(s):  
Vibrational Spectroscopy ◽  
Nonlinear Optical ◽  
Sum Frequency Generation ◽  
Molecular Structures ◽  
Optical Technique ◽  
General Introduction ◽  
Sum Frequency ◽  
Surfaces And Interfaces ◽  
Frequency Generation

In the last two decades, a nonlinear optical technique - sum frequency generation (SFG) vibrational spectroscopy was developed into a powerful characterization method to probe the molecular structures of various surfaces and interfaces in situ. In this paper, we gave a general introduction of the SFG theory and two case studies to demonstrate the power of the SFG spectroscopy.

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