![]() RMSD values (Bond length = 0.035 Å and Bond angle=0.755°) and R-squared analysis (Bond length = 0.985 and bond angle = 0.990) reveals very good correlation between the experimental and theoretical structure. Single Crystal X-ray and refinement studies reveals that the synthesized crystal system is monoclinic with P21/n space group and crystallographic data has been deposited in the Cambridge crystallographic data center with CCDC number: 2126693. The broadband nonlinear response and high transparency make kainate crystals extremely attractive for realizing a range of nonlinear optical devices.Ī new Phenanthro-imidazole crystal, 2-(3,4-dimethoxyphenyl)-1H-phenanthro was synthesized and characterized with spectral studies (IR, 1H-NMR, 13 C-NMR). Broadband THz generation was demonstrated with a detection limited bandwidth of >8 THz along with emission efficiencies comparable to and prevailing those of commercial ZnTe crystals. Second-harmonic generation was measured for ultrashort pumping wavelengths between 8 nm, showing an enhanced response around 600 nm. The crystals were predicted and found to have good transparency in a broad spectral range from the UV to the infrared (0.2-20 μm). Molecular simulations and experimental analysis were performed to retrieve the crystals' properties. The non-centrosymmetric zwitterionic crystallization, molecular structure, and intermolecular arrangement were found to act as additive donor-acceptor domains, enhancing the efficiency of the intrinsic second-order optical nonlinearity of this pure enantiomeric crystal. Here, large-scale kainic acid (kainate) single crystals were synthesized, and their linear and nonlinear optical properties were studied in a broad spectral range, spanning the visible to THz spectral regions. Since nonlinear material responses are linked to a crystal's internal microscopic structure, molecular engineering of maximally unharmonic quantum potentials can boost macromolecular susceptibilities. Organic crystals with unique nonlinear optical properties have been attracting attention owing to their capability to outperform their conventional nonorganic counterparts. All these results clearly pin points that 2MDA pristine is a multipurpose material, which can be used in different optical and opto-electronic applications. Nonlinear tests shows that the SHG efficacy of the grown Schiff base crystal is slightly higher than the reference KDP crystal and also the χ³ value of 2MDA crystal is comparatively higher. ![]() The ability of the grown crystal’s surface to withstand physical load and laser energy is evaluated through microhardness and Laser damage threshold analysis. ![]() Absorption spectrum (UV–Vis-NIR) shows the crystal has a transparency window (480–1100 nm) and emission spectrum (Photoluminescence) shows red light (625 nm) emission. The formation of the 2MDA crystal is also confirmed by FTIR and FT-Raman spectrum through the imine stretching. Comparison of lattice constant with previous report indicates the formation of title crystal. The formation of the title Schiff base is confirmed through various characterizations namely Single Crystal X-Ray Diffraction, H¹ and C¹³ Nuclear Magnetic Resonance (NMR), Fourier Transformation infra-red (FTIR) and Fourier Transformation – Raman spectroscopy (FT-Raman). ![]() After 7 days of slow evaporation process, optically good quality single crystals were obtained. This work would provide a useful perspective on the exploration of next-generation NLO candidates with high performances to meet the urgent demands in DUV and MIR regions.Schiff base crystal of 2-Methoxy-N- aniline (2MDA) was synthesised via condensation reaction. In addition, open challenges in both the synthesis and crystal growth of oxyfluorides are proposed. Their synthesis approaches, crystal chemistry, NLO performance, and structure–property relationship are reviewed. In this review, recently reported oxyfluoride NLO crystals are discussed. For example, fluorooxoborates, fluorophosphates, fluorooxosilicophosphates, fluoroiodates, and fluorotellurites display new structural types and enhanced NLO performances. Therefore, metal oxyfluorides combine the advantages of fluorides and oxides, achieving wide transparent windows, large NLO coefficients, phase-match abilities, and high laser damage threshold values. The incorporation of additional fluorine atoms allows new oxyfluoride-based NLO materials to span a more varied structure design palette than the oxide-only analogs. Recently, metal oxyfluorides have attracted much attention for next-generation NLO materials, in particular those used in the deep ultraviolet (DUV) and middle-infrared (MIR) regions. Nonlinear optical (NLO) crystals are key materials for solid-state lasers, which play an important role in modern science and technology.
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