Phase-front curvature effects on nematicon generation

Reply to “Comment on ‘Spatial optical solitons in highly nonlocal media”'

“…In the past several years, relevant improvements have been made in both technology (better control of the input interface, see [9]) and modeling (accounting, e.g., for walkoff [10][11][12]). Our results establish a good quantitative agreement between experimental data and the modified SMM [2], as recently shown in [13]. Finally, the results from our group have been experimentally validated by several groups [14][15][16][17][18][19][20][21][22][23].…”

“…Better models and approximations can be implemented later. Along this path, we recently elaborated a corrected SMM able to model quantitatively light propagation [13,60]. In doing so, we also tried to understand the limits of this approximation by direct comparison with experiments.…”

“…In the introduction of [4] Ouyang et al state: "On the other hand, even though a convenient method has been introduced in Refs. [3,5,13,14] to study the propagation of light beams in the strongly nonlocal case or even in the sub-strongly nonlocal case, to employ this method efficiently the nonlocal response function must be twice differentiable at its center. As will be shown this method cannot deal with the nonlocal case of an exponential-decay type nonlocal response function that is not differentiable at its center".…”

Spatial fluctuations of optical solitons due to long-range correlated dielectric perturbations in liquid crystals

“…The factor 2 of difference may be due to the overestimation of the scattering in the oneconstant approximation. The same order of magnitude can be found in the literature [2,33], even if no dependence on the nematicon power is reported there. On the same graph, as a comparison, we also show the losses obtained for the case of uncorrelated noise, for which almost no dependence on the nematicon power is observed.…”

Molding Optical Waveguides with Nematicons

“…Similarly treated thin cover slides sealed the cell orthogonally to z and provided molecular anchoring along y. A doped NLC mixture, comprising 4-cyano-4'-pentylbiphenyl (5CB) as the host NLC and photo-polymerizable compound(s) as the guest dopants, was infiltrated into the cell by capillarity (e.g., as in Karimi et al [27] ). A y-polarized Gaussian input beam of wavelength λ=1.064 μm and waist of about 4 μm was launched in the mid-plane of the sample (at 50μm…”