Browsing by Author "Aashar Sajjad"

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    Radiation impact on acoustic waves in Semiconductor Plasmas
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2022) Aashar Sajjad; SP20-RPH-016; Dr. Muhammad Jamil; LHR TP 7686
    In this thesis, we are discussing the radiation impact on acoustic wave that propagates along z-direction. The acoustic waves due to radiation impact are investigated using the classical multi-fluid approach in classical semiconductor plasma. The quantum effects are not considered in this work. Our model is applied to GaAs semiconductor plasmas. Dispersion relation of acoustic waves is calculated where the effects of the radiation modifies it. Numerically it is observed under different physical conditions, for example, on varying the thermal temperature values and plasma number density etc. For this study we are using multi fluid model. A set of fluid equations are applied to drive the dispersion relation. The said work is done qualitatively and quantitatively using MATHEMATICA.