We compute the electric spin susceptibility of Bloch electrons with spin-orbit coupling to second order. find that it is possible generate a nonequilibrium polarization in bulk nonmagnetic inversion-symmetric materials using linearly polarized fields, but process depends on interband coherence and produces heating. It may be avoid heating circular certain scenarios. The standard Edelstein effec...

Second-order nonlinear optical processes enable a wide range of applications used in research and industry. The majority available second-order devices however relies on bulk crystals with low nonlinearity. By exploiting the advancements made integrated optics, materials large nonlinearity can efficient small-sized on-chip at cost. Unfortunately, silicon nitride, mostly for photonics circuits e...

In this paper, we perform a detailed study of the spectral response of the gold U-shaped nano-structures for different geometrical parameters and polarizations in order to obtain significant localization factor in the wavelength 1.55 μm. The obtained near-field distribution of electric fields reveals that resonances in these nano-structures correspond to the even and odd plasmonic modes dependi...

A forward second-harmonic scattering method for determining the second-order susceptibility coefficients of ZnO nanorods on the order of 100 nm in diameter is presented. The long coherence length and strong intensity of the forward second-harmonic signal allow for a simple theoretical model to match the experimental measurements; this results in getting accurate values for the second-order susc...

for the first time in the history of logic, afzal al-din al-khunaji has found tautologies and contradictories among the verity and actuality propositions. these have been formalized and investigated in first-order logic and it has been shown that their perpetual truth requires the assumption of ‘the presupposed existence of non-existence.’ in this paper, i investigate the tautologies in second-...