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Time Dependent Third Order Nonlinear Optical Susceptibility Tensor Components of the Carbon Disulfide Molecule using Femtosecond Degenerate Four-Wave Mixing

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posted on 2023-01-11, 21:54 authored by Prajal Chettri, Shailesh Srivastava
We report time resolved studies and measurement of all the components of the third-order nonlinear optical susceptibility of CS2 at 515 nm using degenerate four wave mixing. The use of a pulse of width 450 fs, which is comparable to the time scale of the molecular reorientation dynamics of CS2 makes our study unique. Given the wide use of this molecule as a reference material, our results will not only be a useful addition to the data base of the nonlinear optical properties of CS2, but also provide additional insights into the time dynamics of the nonlinear processes involved. These results emphasize the importance of the time scales and wavelengths used to report the nonlinear optical susceptibility values for the reference material too.

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