Vibrational imaging with third-order sum-frequency generation microscopy (Conference Presentation)

2019 ◽  
Author(s):  
Adam M. Hanninen ◽  
Richard C. Prince ◽  
Eric O. Potma
Keyword(s):  
Sum Frequency Generation ◽  
Third Order ◽  
Sum Frequency ◽  
Frequency Generation

Bulk Contributions Modulate the Sum-Frequency Generation Spectra of Interfacial Water on Model Sea-Spray Aerosols

2018 ◽  
Author(s):  
Sandeep K. Reddy ◽  
Raphael Thiraux ◽  
Bethany A. Wellen Rudd ◽  
Lu Lin ◽  
Tehseen Adel ◽  
...  
Keyword(s):  
Single Layer ◽  
Sum Frequency Generation ◽  
Second Order ◽  
Interfacial Structure ◽  
Sea Spray ◽  
Third Order ◽  
Systematic Analysis ◽  
Sum Frequency ◽  
Structure Of Water ◽  
Frequency Generation

Vibrational sum-frequency generation (vSFG) spectroscopy is used to determine the molecular structure of water at the interface of palmitic acid monolayers. Both measured and calculated spectra display speci c features due to third-order contributions to the vSFG response which are associated with nite interfacial electric potentials. We demonstrate that theoretical modeling enables to separate the third-order contributions, thus allowing for a systematic analysis of the strictly surface-sensitive, second-order component of the vSFG response. This study provides fundamental, molecular-level insights into the interfacial structure of water in a neutral surfactant system with relevance to single layer bio-membranes and environmentally relevant sea-spray aerosols. These results emphasize the key role that computer simulations can play in interpreting vSFG spectra and revealing microscopic details of water at complex interfaces, which can be difficult to extract from experiments due to the mixing of second-order, surface-sensitive and third-order, bulk-dependent contributions to the vSFG response.

scholarly journals Electronically resonant third-order sum frequency generation spectroscopy using a nanosecond white-light supercontinuum

2014 ◽  
Vol 22 (9) ◽  
pp. 10416 ◽  
Author(s):  
Hiroki Segawa ◽  
Naoki Fukutake ◽  
Philippe Leproux ◽  
Vincent Couderc ◽  
Takeaki Ozawa ◽  
...  
Keyword(s):  
White Light ◽  
Sum Frequency Generation ◽  
Third Order ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation

scholarly journals High-resolution infrared imaging of biological samples with third-order sum-frequency generation microscopy

2018 ◽  
Vol 9 (10) ◽  
pp. 4807 ◽  
Author(s):  
Adam M. Hanninen ◽  
Richard C. Prince ◽  
Raul Ramos ◽  
Maksim V. Plikus ◽  
Eric O. Potma
Keyword(s):  
High Resolution ◽  
Biological Samples ◽  
Infrared Imaging ◽  
Sum Frequency Generation ◽  
Third Order ◽  
Sum Frequency ◽  
Frequency Generation

Bulk Contributions Modulate the Sum-Frequency Generation Spectra of Interfacial Water on Model Sea-Spray Aerosols

2018 ◽  
Author(s):  
Sandeep K. Reddy ◽  
Raphael Thiraux ◽  
Bethany A. Wellen Rudd ◽  
Lu Lin ◽  
Tehseen Adel ◽  
...  
Keyword(s):  
Single Layer ◽  
Sum Frequency Generation ◽  
Second Order ◽  
Interfacial Structure ◽  
Sea Spray ◽  
Third Order ◽  
Systematic Analysis ◽  
Sum Frequency ◽  
Structure Of Water ◽  
Frequency Generation

Vibrational sum-frequency generation (vSFG) spectroscopy is used to determine the molecular structure of water at the interface of palmitic acid monolayers. Both measured and calculated spectra display speci c features due to third-order contributions to the vSFG response which are associated with nite interfacial electric potentials. We demonstrate that theoretical modeling enables to separate the third-order contributions, thus allowing for a systematic analysis of the strictly surface-sensitive, second-order component of the vSFG response. This study provides fundamental, molecular-level insights into the interfacial structure of water in a neutral surfactant system with relevance to single layer bio-membranes and environmentally relevant sea-spray aerosols. These results emphasize the key role that computer simulations can play in interpreting vSFG spectra and revealing microscopic details of water at complex interfaces, which can be difficult to extract from experiments due to the mixing of second-order, surface-sensitive and third-order, bulk-dependent contributions to the vSFG response.

Third-order optical sum-frequency generation in micrometer-sized liquid droplets

1989 ◽  
Vol 14 (8) ◽  
pp. 402 ◽  
Author(s):  
William P. Acker ◽  
David H. Leach ◽  
Richard K. Chang
Keyword(s):  
Sum Frequency Generation ◽  
Liquid Droplets ◽  
Third Order ◽  
Sum Frequency ◽  
Frequency Generation

Effects of third-order susceptibility in sum frequency generation spectra: a molecular dynamics study in liquid water

2018 ◽  
Vol 20 (5) ◽  
pp. 3040-3053 ◽  
Author(s):  
Tatsuya Joutsuka ◽  
Tomonori Hirano ◽  
Michiel Sprik ◽  
Akihiro Morita
Keyword(s):  
Molecular Dynamics ◽  
Liquid Water ◽  
Md Simulations ◽  
Sum Frequency Generation ◽  
Third Order ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Order Susceptibility

χ(2) and χ(3) at charged interfaces in SFG spectroscopy are distinctively calculated using MD simulations.

Third-order sum-frequency generation in droplets: experimental results

1993 ◽  
Vol 10 (1) ◽  
pp. 34 ◽  
Author(s):  
David H. Leach ◽  
William P. Acker ◽  
Steven C. Hill ◽  
Richard K. Chang
Keyword(s):  
Sum Frequency Generation ◽  
Experimental Results ◽  
Third Order ◽  
Sum Frequency ◽  
Frequency Generation
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