We investigate stimulated scattering instabilities of coherent circularly polarized electromagnetic (CPEM) waves carrying orbital angular momentum (OAM) in dense quantum plasmas with degenerate electrons and nondegenerate ions. For this purpose, we employ the coupled equations for the CPEM wave vector potential and the driven (by the ponderomotive force of the CPEM waves) equations for the elec...

in this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a gaas/alas spherical quantum dot has been calculated. the perturbation method has been used within the framework of effective mass approximation for these calculations. overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...

The recent availability of thermoelectrically cooled pulsed and continuous wave quantum and inter-band cascade lasers in the mid-infrared spectral region has led to significant improvements and new developments in chemical sensing techniques using in-situ laser absorption spectroscopy for plasma diagnostic purposes. The aim of this article is therefore two-fold: (i) to summarize the challenges ...

background: there are varieties of purification techniques for separation of human plasma proteins such as salting out, ion exchange chromatography, and ethanol fractionation. there are limitations for each method, for example in salting out method, the salt has to be removed in an additional step. ion exchange chromatography is difficult for scaling up, and plasma fractionation is a time consu...

A slight enhancement of the onset transition temperature Tc has been observed in quantum dots of the high-Tc superconductor yttrium–barium–copper oxide (Y1Ba2Cu3O7−δ). The dots were formed when YBCO particles (diameter ≤600 nm) were exposed to an RF plasma to produce a Coulomb crystal. The plasma damages the particles and causes 20–25 nm sized isolated islands of the correct 1-2-3 stoichiometry...

Abstract We investigated the possibility of using a layer quantum dots (QDs) deposited on microparticle surface for measurement charge acquires when immersed into plasma. To that end, we performed calculations Stark shift photoluminescence spectrum QDs caused by fluctuating local electric field. In our calculations, assumed plasma-delivered surplus electrons to be distributed microparticle. Acc...

Comparative studies were carried out to elucidate the most essential parameter(s) for control of density profiles in LHD heliotron and JT-60U tokamak plasmas. Different collisionality dependence was found between two devices. Change of fluctuation property was observed at different density profile in both devices in plasma core region. In JT-60U, increase of radial correlation length was observ...

A slight enhancement of the onset transition temperature Tc has been observed in quantum dots of the high-Tc superconductor yttrium–barium–copper oxide (Y1Ba2Cu3O7−δ). The dots were formed when YBCO particles (diameter ≤600 nm) were exposed to an RF plasma to produce a Coulomb crystal. The plasma damages the particles and causes 20–25 nm sized isolated islands of the correct 1-2-3 stoichiometry...