Growth of large methyl-(2,4-dinitrophenyl)-aminopropanoate: 2-methyl-4-nitroaniline crystals for nonlinear optical applications

Investigation of organic nonlinear optical crystals for harmonic frequency conversion and electro-optics. Final technical report

“…The low temperature solution growth apparatus was modified to grow organic crystals using organic solvents [4]. The schematic diagram of this modified solution growth crystallizer is given in Figure 1.…”

“…The seeds must be without any macroscopic defects such as flaws and inclusions because it may cause spurious crystallization in solution. The crystals were grown from saturated solution by a novel solution crystal growth technique developed by the authors [4]. In this technique the seed crystal is pulled at a controlled rate equal to the growth rate of the crystal along with programmed cooling of the growth solution to annealed in-situ but also spurious aloevera-tree like growth of the seed is greatly reduced or completely eliminated.…”

“…3. Single crystals of MHBA were grown from a mixed solution of methanol and ionized water by low temperature modified solution crystal growth technique [4]. The largest crystal in size ( 6 0 x 3 0~5 mm3) was grown with solvent of ethanol in two weeks.…”

Synthesis, growth and characterization of l‐alaninium oxalate ‐ a novel organic NLO crystal

“…High-quality organic NLO crystals posses sufficiently large nonlinear optical coefficient, wider optical transmission window coupled with shorter cut-off wavelength and low laser damage threshold power. However, most organic NLO crystals have usually poor mechanical and thermal properties, and it is difficult to grow large optical quality crystals of this class for device applications [1][2][3][4]. In the well -known amino acid salts of L-arginine phosphate monohydrate, Larginine fluoride and L-histidine tetrafluoroborate, these requirements have been successfully met with [5].…”

Investigation on Synthesis, Growth, Structural and Optical Properties of a New Semiorganic Crystal 2-Aminopyridine Potassium Hydrogen Phthalate (2APKHP)

“…An organic material shows poor mechanical and thermal properties and it is difficult to grow large optical quality crystal of these materials for device applications [2,3]. The organic materials have very large nonlinear susceptibilities compared with inorganic materials, but their use is foil by their low optical transparencies, poor mechanical properties, low laser damage threshold and an inability to produce and process large crystals.…”