What Does Second-Harmonic Scattering Measure in Diluted Electrolytes?

2018 ◽  
Vol 9 (13) ◽  
pp. 3698-3702 ◽  
Author(s):  
Daniel Borgis ◽  
Luc Belloni ◽  
Maximilien Levesque
Keyword(s):  
Second Harmonic ◽  
Second Harmonic Scattering

scholarly journals Hyaluronan orders water molecules in its nanoscale extended hydration shells

2021 ◽  
Vol 7 (10) ◽  
pp. eabf2558
Author(s):  
J. Dedic ◽  
H. I. Okur ◽  
S. Roke
Keyword(s):  
Second Harmonic ◽  
Hydration Shell ◽  
Water Molecules ◽  
Temperature Dependent ◽  
Flexible Chain ◽  
Optical Modeling ◽  
Hydration Shells ◽  
Second Harmonic Scattering ◽  
Nuclear Quantum Effects ◽  
Extracellular Environment

Hyaluronan (HA) is an anionic, highly hydrated bio-polyelectrolyte found in the extracellular environment, like the synovial fluid between joints. We explore the extended hydration shell structure of HA in water using femtosecond elastic second-harmonic scattering (fs-ESHS). HA enhances orientational water-water correlations. Angle-resolved fs-ESHS measurements and nonlinear optical modeling show that HA behaves like a flexible chain surrounded by extended shells of orientationally correlated water. We describe several ways to determine the concentration-dependent size and shape of a polyelectrolyte in water, using the amount of water oriented by the polyelectrolyte charges as a contrast agent. The spatial extent of the hydration shell is determined via temperature-dependent measurements and can reach up to 475 nm, corresponding to a length of 1600 water molecules. A strong isotope effect, stemming from nuclear quantum effects, is observed when light water (H2O) is replaced by heavy water (D2O), amounting to a factor of 4.3 in the scattered SH intensity.

scholarly journals Second-Harmonic Scattering as a Probe of Structural Correlations in Liquids

2016 ◽  
Vol 7 (21) ◽  
pp. 4311-4316 ◽  
Author(s):  
Gabriele Tocci ◽  
Chungwen Liang ◽  
David M. Wilkins ◽  
Sylvie Roke ◽  
Michele Ceriotti
Keyword(s):  
Second Harmonic ◽  
Second Harmonic Scattering

Optical second-harmonic scattering in rat-tail tendon

Biopolymers ◽  
1981 ◽  
Vol 20 (6) ◽  
pp. 1271-1290 ◽  
Author(s):  
Shmuel Roth ◽  
Isaac Freund
Keyword(s):  
Second Harmonic ◽  
Second Harmonic Scattering ◽  
Tail Tendon ◽  
Rat Tail

Resonant hyper-Raman and second-harmonic scattering in a CdS quantum-dot system

1996 ◽  
Vol 53 (4) ◽  
pp. R1721-R1724 ◽  
Author(s):  
A. V. Baranov ◽  
K. Inoue ◽  
K. Toba ◽  
A. Yamanaka ◽  
V. I. Petrov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Second Harmonic ◽  
Cds Quantum Dot ◽  
Second Harmonic Scattering

scholarly journals Optical second-harmonic scattering from a non-diffusive random distribution of nonlinear domains

2010 ◽  
Vol 18 (13) ◽  
pp. 14202 ◽  
Author(s):  
Jorge Bravo-Abad ◽  
Xavier Vidal ◽  
Jorge Luis Domínguez Juárez ◽  
Jordi Martorell
Keyword(s):  
Random Distribution ◽  
Second Harmonic ◽  
Second Harmonic Scattering

Second-order susceptibilities of ZnO nanorods from forward second-harmonic scattering

2009 ◽  
Vol 105 (6) ◽  
pp. 063531 ◽  
Author(s):  
K. Geren ◽  
S. W. Liu ◽  
H. J. Zhou ◽  
Y. Zhang ◽  
R. Tian ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Zno Nanorods ◽  
Second Order ◽  
Second Harmonic Scattering
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