Structural, optical and electronic properties elastic constants of Cd1-x-yZnx HgyTe alloys have been studied by employing the commercial code Castep based on density functional theory. The generalized gradient approximation local were utilized as exchange correlation. Using for compounds, bulk modulus, band gap, Fermi energy Kramers–Kronig relations, dielectric refractive index found through ca...

Kramers-Kronig (K-K) relations exist as a consequence of causality, placing nonlocal constraints on the relationship between dispersion and absorption. The finite-bandwidth method of applying these relations is examined where the K-K integrals are restricted to the spectrum of the experimental data. These finite-bandwidth K-K relations are known to work with resonant-type data and here are appl...

Unstable atomic nuclei release excess energy through various radioactive decay processes. In some cases, including internal conversion and electron capture, the atom remains ionised after the nuclear decay event. Atomic relaxation back to the ground state occurs rapidly via radiative and non-radiative processes, often referred to collectively as atomic radiations. Non-radiative processes includ...

In this paper, we study theoretically a pump–probe model for the Kramers–Kronig (KK) relations during laser operation. A solution of laser equations reveals that the dispersion profile of a saturated laser gain medium is non-analytical at the boundary between the lasing and the non-lasing spectral region. Such a non-analyticity cannot be explained in terms of the KK relations. In order to inter...

We present a determination of optical potentials for $^4$He-target collisions using the double-folding method. use chiral effective field theory nucleon-nucleon interactions at next-to-next-to-leading order combined with state-of-the-art nucleonic densities. The imaginary part potential is obtained from real interaction either through proportionality constant or applying Kramers-Kronig dispersi...

The frequency dependence of third-harmonic medium amplitude oscillatory shear (MAOS) modulus $G_{33}^{*}(\omega)$ provides insight into material behavior and microstructure in the asymptotically nonlinear regime. Motivated by difficulty measurement MAOS moduli, we propose a test for data validation based on Kramers-Kronig relations. We extend approach used to assess consistency linear viscoelas...

A phase shift electro-optic semiconductor structure that features a Mach-Zehnder Interferometer (MZI) is numerically analyzed. The interferometer considers highly-doped Si-based waveguide can control the by varying refractive index through carrier concentration while applying voltage. To analyze structure, Kramers-Kronig dispersion relations, effective method and Drude model are implemented wit...

Lβ2 X-ray satellite spectra of tungsten and gold are calculated using the Multi-Configuration Dirac-Fock energies and compared with recent experimental data. New calculations of L1-L3M5 Coster-Kronig transition energies for tungsten are presented, confirming the origin of the Lβ2 visible satellites reported by two experimental groups. We found the value 5.09 eV for the average energy of the L1-...