Synthesis and third order optical nonlinearity studies of toluidine tartrate single crystal supported by photophysical characterization and vibrational spectral analysis

Physicochemical and Nonlinear Optical Properties of a Stilbazolium Family Single Crystal with Third Order Nonlinear Optical Activity

“…Under the influence of continuous wave laser, the sample can act as a lens which is capable of either focusing or defocusing the incident beam in and around the focus [64] . In the graph, the higher transmittance (peak) before the focus, followed by the lower transmittance (valley), confirms the self‐defocusing nature of the DSNA crystal [65] . In general, the origin of the nonlinear refractive index in a material is attributed to the molecular, electrostrictive, electronic or thermal effects [66] .…”

“…[64] In the graph, the higher transmittance (peak) before the focus, followed by the lower transmittance (valley), confirms the self-defocusing nature of the DSNA crystal. [65] In general, the origin of the nonlinear refractive index in a material is attributed to the molecular, electrostrictive, electronic or thermal effects. [66] In the case of DSNA crystal, thermal effects are predominant.…”

Structural and Optical Coefficients Investigation of γ-Al2O3 Nanoparticles using Kramers-Kronig Relations and Z–scan Technique

“…The valley-to-peak configuration refers to the positive sign of NLR index n 2 and the self-focusing effects [20] under continuous wave (CW) excitation. This origin of nonlinearity response is photothermal and points toward the potential optical limiting application of these NPs in the CW regime [18].…”

“…Nowadays, the studies on nonlinear optical (NLO) materials with the ultrafast response, enhanced laser-induced damage threshold, larger two-photon absorption (TPA), and third-order nonlinearities have gained increasing interest due to their promising potentials in the next-generation photonic devices including optical switches [15][16][17][18][19][20][21], optical information processing [16,17,[19][20][21], 3D optical data storage [17,[19][20][21][22], optical power limiting [15,16,[18][19][20][21], optical fiber communication [16,17,[19][20][21][22], laser-predicated imaging, remote sensing [19][20][21], frequency conversion of coherent laser sources [17,22,23], optical computing [23], high-density data processing [23], nonlinear imaging [16], image manipulation [15], and color displays [17,23].…”