Key aspects ofl-threoninium picrate single crystal: an excellent organic nonlinear optical material with a high laser-induced damage threshold

Growth of a bulk-size single crystal of sulphamic acid by an in-house developed seed rotation solution growth technique and its characterization

“…These values are in good agreement with the reported ones (Osaki et al, 1955). In the obtained diffraction pattern the high intensity and sharp peak show the high quality of the crystalline material, because the intensity of the diffracted beams from the different planes depends on the atomic arrangement in the crystal (Krishna et al, 2014). Further, the strain present in the grown crystal was evaluated by using the Williamson-Hall equation:…”

l-Methioninium picrate

“…3. One can note that this type of crystal packing is typical for amino acid picrates and that half of known compounds of this type (L-valine [11], L-asparagine [12] and L-threonine [19,20] picrates) form 2D layers without inter-layer hydrogen bonds. All other known amino acid picrates form either 1D chain structures (L-prolinium [14][15][16][17][18] picrate) or structures with 3D hydrogen-bonding network (all remaining picrates described above).…”

“…Previously, picrates of L-valine [11], L-asparagine [12] and L-arginine, [13] as well as picrates of L-proline [14][15][16][17][18], L-threonine [19,20], Lornithine [13,21] and L-histidine [22][23][24] were discovered. The authors of [10] obtained the previously known L-valinium picrate and a new crystal, L-isoleucinium picrate.…”

Crystal growth, spectral, optical, laser damage, photoconductivity and dielectric properties of semiorganic l-cystine hydrochloride single crystal

“…where E is the energy (mJ), τ is the pulse width (ns) and A is the area of the spot (4.153×10 -4 cm 2 ). The calculated laser damage threshold for the grown crystal is 10.1 Gw cm -2 [17].…”

“…Thus FTIR analyses confirm the presence of the functional groups of L-cystine hydrochloride and the vibrational frequencies compare with the corresponding reported values[8,11,16 ].3.3 Optical absorption studiesOptical transmission and absorption are important factors to identify NLO material. Crystals to be used for optical applications must have wide transparency with little absorption[17]. The UV-Vis-NIR absorption spectrum is shown inFig.3.The cutoff wavelength of grown crystal occurs at ~360 nm.…”