Numerical analysis of second harmonic intensity images of a H–Si(111) surface after UV light pulse irradiation

2008 ◽  
Vol 255 (5) ◽  
pp. 3442-3446 ◽  
Author(s):  
Y. Miyauchi ◽  
H. Sano ◽  
G. Mizutani
Shinku ◽  
2005 ◽  
Vol 48 (8) ◽  
pp. 489-491 ◽  
Author(s):  
Yoshihiro MIYAUCHI ◽  
Haruyuki SANO ◽  
Goro MIZUTANI

2002 ◽  
Vol 91 (7) ◽  
pp. 4229-4232 ◽  
Author(s):  
H. Sano ◽  
M. Kume ◽  
H. Nakagawa ◽  
G. Mizutani

2010 ◽  
Vol 42 (10-11) ◽  
pp. 1667-1670 ◽  
Author(s):  
Y. Miyauchi ◽  
H. Sano ◽  
J. Okada ◽  
H. Yamashita ◽  
G. Mizutani

Author(s):  
M. Zavelani-Rossi ◽  
M. Labardi ◽  
D. Polli ◽  
G. Cerullo ◽  
S. De Silvestri ◽  
...  

2021 ◽  
Author(s):  
kamal ray ◽  
Aditya Limaye ◽  
Ankur Saha ◽  
Ka Chon Ng ◽  
Adam Willard ◽  
...  

<p>We use second harmonic generation spectroscopy, molecular dynamics simulation, and theoretical modeling to study the response of the neat liquid water-air interface to changes in the potential of an external electrode positioned above the liquid. We observe a parabolic dependence of second harmonic intensity on applied potential, indicating that water’s net interfacial dipole responds linearly. We also observe a minimum intensity when the potential is tuned to a specific positive value. Interpreting this minimum based on the macroscopic electrostatic potential profile yields misleading physical conclusions because it neglects the internal bias exerted on molecular orientations by the excess surface concentrations of OH<sup>-</sup> or H<sub>3</sub>O<sup>+</sup>. We thus find that water’s net interfacial dipole orientation is primarily responsive to the effects of these ionic species rather than the external electric field. </p>


2021 ◽  
Author(s):  
kamal ray ◽  
Aditya Limaye ◽  
Ankur Saha ◽  
Ka Chon Ng ◽  
Adam Willard ◽  
...  

<p>We use second harmonic generation spectroscopy, molecular dynamics simulation, and theoretical modeling to study the response of the neat liquid water-air interface to changes in the potential of an external electrode positioned above the liquid. We observe a parabolic dependence of second harmonic intensity on applied potential, indicating that water’s net interfacial dipole responds linearly. We also observe a minimum intensity when the potential is tuned to a specific positive value. Interpreting this minimum based on the macroscopic electrostatic potential profile yields misleading physical conclusions because it neglects the internal bias exerted on molecular orientations by the excess surface concentrations of OH<sup>-</sup> or H<sub>3</sub>O<sup>+</sup>. We thus find that water’s net interfacial dipole orientation is primarily responsive to the effects of these ionic species rather than the external electric field. </p>


Sign in / Sign up

Export Citation Format

Share Document