Investigation on the linear and nonlinear optical properties of a metal organic complex—Bis thiourea zinc acetate single crystal

Synthesis, structural, topographical, linear and nonlinear optical, electrical and mechanical properties of Bisthiourea zinc acetate single crystal

“…The peak at 676 cm À1 corresponds to COO bending vibration. The observed wave numbers and the proposed assignments are in good agreement with earlier reported values [12,23,24].…”

“…The peak observed at 1645 and 3308 cm À1 are due to symmetric and asymmetric bending vibration of NH 2 molecule respectively. The symmetric and asymmetric stretching vibration of C]S was shifted to 712 cm À1 and 1335 cm À1 which confirms the metalesulphur bonding [12,23]. The peak at 776 cm À1 is due to CeS bending vibration.…”

“…In BTZA, the zinc can coordinate either with the nitrogen or sulphur in thiourea molecule. The extensive hydrogen bonding in the complex is proved from the broadening of the spectrum in the range of 3000e3400 cm À1 [23]. The symmetric and asymmetric stretching modes of NH 2 vibration are observed at 3190 and 3375 cm À1 respectively.…”

Study of growth condition and characterization of bisthiourea–zinc acetate (BTZA) crystal grown in silica gel

“…The XRD study reveals that the crystal belongs to the monoclinic system. The lattice parameter was determined as a = 7.1243 Å, b = 17.7292 Å, c = 11.1372 Å, a = c = 90°, b = 103.18°which is in good agreement with that of the reported value [17,21].…”

Third-order nonlinear optical response of Ag–CdSe/PVA hybrid nanocomposite

“…It is known that the materials with a high concentration of metal nanoparticles exhibit large nonlinear optical effects [19]. Thus, these materials with large third-order optical nonlinearity and fast response time are essential for future optical device applications in optical computing, real time holography, optical correlators and phase conjugators [20,21]. In literature, a number of techniques are reported for studying nonlinear behaviour of the nanomaterials such as: degenerate four-wave mixing (DFWM), nonlinear interferometry, second harmonic generation and third harmonic generation (SHG and THG) [22].…”