Preparation, characterization and third order nonlinear optical properties of the bis(tetrabutylammonium)-[Cd(dmit)2] (dmit=2-thioxo-1,3-dithiol-4,5-dithiolate) for all-optical switching applications at blue–green light band

Exploring the influence of carboxylic acids on nonlinear optical (NLO) and dielectric properties of KDP crystal for applications of NLO facilitated photonic devices

“…The high magnitude of positive NLR evidences the higher Kerr lens modelocking (KLM) ability of doped KDP crystal which is desirable parameter for designing the components for laser alignment and shorter pulse generation systems [12]. The increased Kerr lensing effect in doped KDP crystals is enforced due to trafficking of p-conjugated electron cloud in large molecular orbitals, formed by the linear superposition of carbon P z atomic orbitals in presence of optical field [13,14], this might have been observed due to inclusion of dopants OA and MA in KDP. The doped KDP crystals with impressive positive nonlinear refraction are exclusively suitable for optical limiting and optical switching devices [15,16].…”

Research on Nonlinear Absorption Effect in KDP and 70%-DKDP Crystals

“…The results with different laser power intensities were derived from measurements on the II-type, and revealed the features in common with z-cut and I-type samples at λ = 1064 nm. The dashed line represents the experimental data and the red solid line is the fitted results using Equations (1) and (2) [18,19]:…”

“…From the fitted results and Equation (2), the corresponding nonlinear absorption coefficients β are calculated and summarized in Table 1. The imaginary part χ (3) I of the third-order susceptibility, which is correlated with the nonlinear absorption coefficient β, is calculated using the following formulas [16,18,20]:…”

Synthesis, characterization and theoretical investigations of the structure, electronic properties and third-order nonlinearity optics (NLO) of M(DPIP)2

“…Paul and coworkers [18] synthesized and characterized a series of complexes with arylalkynyl iron/ruthenium and found large changes in third-order nonlinearities due to oxidation. Wang et al [19] studied third-order NLO properties of a single crystal containing cadmium ions. The magnitudes of the third-order nonlinear refraction index, n 2, and the second order molecular hyperpolarizability, c, were 9.409 Â 10 À18 m 2 W and 2.774 Â 10 À30 esu, respectively, which suggests that the crystal is a potential candidate for all-optical switching devices in the blue-green region of light.…”