The transient optical Kerr effect of simple liquids studied with an ultrashort laser with variable pulsewidth

Huang, Tzuen-Hsi; Hsu, Chia‐Chen; Wei, Tai‐Huei; Chang, Springfield; Yen, Shih-Ming; Tsai, Chi-Pin; Liu, Ray-Tang; Kuo, Chie‐Tong; Tse, W. S.; Chia, Chih Ta

doi:10.1109/2944.571777

Cited by 21 publications

(1 citation statement)

References 49 publications

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“…Following the methodology in [20,23,39,40], these nuclear contributions are treated as linearly independent, giving the combined response function Rt P m n 2,m r m t. Together with the bound-electronic NLR, this leads to an irradiance-and time-dependent third-order response, yielding a change of refractive index linear in the excitation irradiance I t as…”

Section: Theorymentioning

confidence: 99%

Temporal and polarization dependence of the nonlinear optical response of solvents

Zhao

Reichert

Benis

et al. 2018

Optica

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It has long been known that nonlinear refraction in solvents can depend on pulse width, and this along with experimental uncertainties has led to orders-of-magnitude disagreements in nonlinear refractive coefficients reported in the literature. To resolve this issue, we perform beam-deflection (BD) measurements of the rigorously defined nonlinear impulse response function for 24 commonly used solvents selected from various classes of molecules. Using this polarization-resolved BD, the bound-electronic and the three major nuclear contributions are separately measured by determining the magnitudes, symmetry, and temporal dynamics of each mechanism. This allows us to construct the response functions that we use to accurately establish self-consistent references for predicting and interpreting the outcomes of other experiments performed on these materials over the temporal range from 10 fs to 1 ns. The results also provide insight into relating solvent nonlinearities with their molecular structures and exploring the effects of the Lorentz-Lorenz local field. We find that nonconjugated molecules with small polarizability anisotropy exhibit negligible reorientational response, and hence the nonlinear refraction is almost independent of pulse width. Knowledge of the response functions also allows engineering the transient nonlinear refractive properties of solutions of organic dyes, for example, materials with effectively zero nonlinear refraction.

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Section: Theorymentioning

confidence: 99%