Stimulated Brillouin scattering of laser in semiconductor plasma embedded with nano-sized grains

Sharma, Giriraj; Dad, R. C.; Ghosh, Shreya

doi:10.1063/1.4926710

Cited by 1 publication

(2 citation statements)

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“…The plasma is quasi neutral and the conservation of particle number density must always holds. Thus charged should be hold:n 0e e = n 0h e − Z d en 0d where n 0d is concentration of CGs and Z d is charge state of colloids [15][16][17]. In equation 4, µ = e / mν is the electron mobility, k B is the Boltzmann's constant and T the electron temperature in 0 K.…”

Section: Theoretical Formulationmentioning

confidence: 99%

“…In order to explore the possibility of the modulational amplification, the nonlinear steady state growth rate of the modulated waveform of the pump exceeding a threshold value is obtained through the relation Thus from equations (16) and 17, in order to attain a growth of the modulated signal, it may be infer that [ξ e f f ] imag. should be negative.…”

Section: Theoretical Formulationmentioning

confidence: 99%

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Acousto-optic modulation in ion implanted semiconductor plasmas having SDDC

Malviya¹,

Yadav

Ghosh

2018

Applied Mathematics and Nonlinear Sciences

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The present paper is aimed to the exploration of acousto-optic (AO) modulational amplification in ion implanted semiconductors. The AO modulational process has been treated as a four wave parametric mixing process and the effective third-order acousto-optic susceptibility characterizing the instability process has been deduced. By considering that the origin of modulational interaction lies in the third order AO susceptibility arising from the nonlinear induced current density and using the coupled mode theory, an analytical investigation of an intense laser beam in a strain dependent dielectric constant (SDDC) semiconductor crystal is presented. We found a significant change in threshold and gain characteristics with changes in charge imbalance parameter. The presence of colloidal grains (CGs) plays an effective role in changing the threshold intensity and effective gain constant.

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Section: Theoretical Formulationmentioning

confidence: 99%

Section: Theoretical Formulationmentioning

confidence: 99%