Prospects of non-linear optical behaviour of PZT/ZnO heterostructures

Derivation of Miller’s rule for the nonlinear optical susceptibility of a quantum anharmonic oscillator

“…derived in section 3.1, where the Fourier coefficient is given by (39). Notably, it does not depend on the quantum number n and is therefore identical for all eigenstates.…”

“…Due to the enormous simplification that results from deriving nonlinear optical spectra purely on the basis of easily obtainable linear susceptibilities, Miller's rule is now widely used in practical materials research, not only to avoid the expensive computation of higher-order susceptibilities in theoretical simulations [34][35][36], but also to sidestep technically challenging direct measurements of the nonlinear coefficients in experimental studies and to predict them instead from the linear optical absorption or refractive index [37][38][39]. Finally, Miller's rule underlies common software packages for modelling the nonlinear optical materials properties [40,41] and plays an important role in modern computer-aided materials discovery, because it facilitates a simple quantitative estimate of various nonlinearities from a small set of tabulated results for the linear optical functions [42].…”

Morphological evaluation and boosted photocatalytic activity of N-doped ZnO nanoparticles prepared via Co-precipitation method

“…Non-metal doping, i.e., nitrogen and fluorine, has the potential to solve the recombination issue between electrons and holes by trapping electrons or holes [ 26 ]. Several studies have been published on N-doped ZnO owing to its potential applications of photodegradation of organic dyes using different synthesis procedures [ [27] , [28] , [29] , [30] , [31] ]. Sun et al synthesized N-doped ZnO NPs by solvothermal route, which showed improved photocatalytic activities than pure ZnO NPs for methyl orange dye degradation under sunlight irradiation [ 27 ].…”