Zur Grammatik des Z(w)ay

Abstract

Review Article

Classical modeling of ultrafast coherent magneto-optical experiments

“…The first expression of the tensor elements was given in 1908 by Voigt who considered the motion of charges induced by the Lorentz magnetic force. 23,24 Within the framework of this first classical model, an agreement with the experimental results obtained on ferromagnetic materials can be found if a value of the internal magnetic field of the order of 10 3 T is employed. It corresponds to the value of the Weiss molecular field.…”

“…This modification incorporated into the optical indices given by Eq. (24) gives interesting results in comparison with the case where λ = 0.…”

“…Here we perform a similar study to that of the previous section but now incorporating the spin-orbit interaction by using a nonzero value of the magneto-optical parameter λ = ieM z 2mc 2 ω 0 in Eq. (24). In order to be compatible with our classical description, the parameter λ, which is a function of M z , must be expressed as a function of the internal magnetic field B mat .…”

Stimulated Raman scattering spectroscopy and χ(3)-nonlinear lasing effects in single crystals of aragonite (orthorhombic CaCO3)

“…Among the carbonates, the aragonite-type structure is adopted by compounds with M II = Ca, Sr, Ba, Ra, Pb, or Eu (as well as Sm or Yb) [22][23][24]. Note that CaCO 3 is found with calcite structure at atmospheric pressure while the aragonite type is stable at elevated pressure, but also Crystal Space group Nonlinearity Room-temperature Manifestation of Span of Stokes SRS-promoting nonlinear-laser and anti-Stokes mode, cm −1 interaction comb, cm −1 a) SiO2 D 4 3 − P 3121 b) χ (2) + χ (3) 465.5 [11] SRS, SHG, THG c) , ≈ 20482(45) (α-quartz) (No. 152) self-SFG(SRS) d) [9,11] ≈ 8383 (19) [11] CaCO3 D 6 3d − R3c χ (3) 1086.5 [8,10] SRS, SHG e) , THG, FiHG f ) , ≈ 20643(20) (calcite) (No.…”

“…For the detailed investigation of this fascinating effect crystals of aragonite have been used time and again during the following one and a half century, see, e.g. [4,5]. The availability of high-quality natural crystals, particularly of calcite, α-quartz (α-SiO 2 ) or diamond also pushed the development of the field of nonlinear optics, enabling the study of effects such as the second harmonic generation (SHG) or stimulated Raman scattering (SRS) (see, e.g., [6][7][8][9]), that are now widely used in science and technology.…”