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A New Model to Describe Quarkonium Systems under Modified Cornell Potential at Finite Temperature in pNRQCD
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Study of SHG and LE-O Susceptibilities of InAs Crystal: Linear Absorption Taken into Account
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Study of SHG and LE-O Susceptibilities of InAs Crystal: Linear Absorption Taken into Account

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Abstract:

We applied a model involving two coupled anharmonic oscillators (electronic and ionic) to estimate the Second Harmonic Generation (SHG) and Linear Electro-Optic (LE-O) susceptibilities of InAs crystal. The crystal of InAs belongs to III-V group compounds owing cubic zinc-blende-type structure. Linear absorption is considered for the selected spectral region 1250 nm – 390 nm. So, the contribution of the imaginary part of the involved complex linear ionic susceptibility to the resultant SHG and LE-O susceptibilities is taken into account and hence the absolute value of complex-linear ionic susceptibility is used in place of the complex-linear ionic susceptibility in the computation of SHG and LE-O coefficients. All of the four constants (nonlinear strength factors), appearing in the model, are determined with the help of experimental data of SHG susceptibility measured in the selected region of 1076 nm-535 nm. Application of such calculated nonlinear strength factors in the concerned modelled expressions, SHG and LE-O susceptibility coefficients are computed as a function of frequency to illustrate the dispersion in the region of 1250 nm –390 nm.

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International Journal of Physics, Chemistry and Astronomy (Volume 88)

Pages:

17-26

DOI:

https://doi.org/10.56431/p-8y1ddd

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Online since:

December 2022

Authors:

Chandra P. Singh*

Keywords:

Linear Electro-Optic Susceptibility Coefficient, Nonlinear Optics, Second Harmonic Generation

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