Progress in nonlinear optical materials for high power lasers☆

Growth and physical properties of a new chiral open-framework crystal for NLO applications: Cesium hydrogen l-malate monohydrate

“…For these reasons, Gomes and co-workers have searched for new mixed organicinorganic systems based on L-malic acid. In an earlier report by Eimerl et al, it is suggested that molecular organic crystals containing small, conjugated, ionic groups attached to chiral carbon centers are intrinsically acentric, and they have much larger hyperpolarizabilities than nonconjugated units, such as the phosphate ion [3]. The nonlinear coupling in such crystals is therefore likely to be adequate.…”

“…NLO materials possessing better physical and chemical properties and that can be grown to the required size in the laboratory are needed for applications. There are sustained efforts to design and synthesize such materials because of their commercial importance in the fields of optical communication, signal processing, sensing and instrumentation [1][2][3][4][5][6]. NLO materials based on metal-organic coordination networks are advantageous in their transparency/nonlinearity and have a great potential for crystal engineering based on three-dimensional (3D) coordination networks [7].…”

First principal studies of spectroscopic (IR and Raman, UV–visible), molecular structure, linear and nonlinear optical properties of l-arginine p-nitrobenzoate monohydrate (LANB): A new non-centrosymmetric material

“…N(22)-H(23)---O(14) and second between O(13) and H(46) i.e. O(44)-H(46)---O(13). The bond length of these the hydrogen bonding is strong between L-arginine and p-nitrobenzoic acid and water molecule is connected with p-nitrobenzoic acid.…”

“…There are many organic and semiorganic salts of L-arginine such as: L-arginine phosphate monohydrate (LAP), L-arginine trifluoroacetate (LATF), L-arginine bis(trifluoroacetate) (LABTF) and L-arginine 4-nitrophenolate 4-nitrophenoldehydrate (LAPP) etc. have been invented and reported with good nonlinear optical properties have been reported [10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Recently a new compound of L-arginine known as Larginine p-nitrobenzoate monohydrate (LANB) has been synthesized and its solubility, crystal growth, crystal structure, spectroscopic, NMR, linear and nonlinear optical and thermal properties were reported experimentally [24].…”

Investigation on the physicochemical properties of nonlinear optical (NLO) single crystal: l-histidinium dinitrate

“…Recently, variety of semi-organic crystals for nonlinear optics applications have been developed, among them the amino acids are found to have definite edge over others as they display special features of interest [3], such as (i) molecular chirality, which secures acentric crystallographic structures; (ii) absence of strongly conjugated bonds, leading to wide transparency ranges in the visible and UV spectral regions; (iii) Zwitterionic nature of the molecule, which favors favorable physicochemical stability. In addition, amino acids can be used as a basis for synthesizing organic-inorganic compounds like LAP [4] and its derivatives.…”