Third-order nonlinear optical properties of porphyrazine, phthalocyanine and naphthalocyanine germanium derivatives: Demonstrating the effect of π-conjugation length on third-order optical nonlinearity of two-dimensional molecules

Third-Order Optical Nonlinearities of Novel Phthalocyanines and Related Compounds

“…Furthermore, peripheral substituents could also influence the nonlinearity through intermolecular interactions. Therefore, the third-order NLO susceptibility (3) could vary by several orders of magnitude through chemical modification of the macrocycle structure (Nalwa et al, 1993(Nalwa et al, , 1999.…”

Correlation between structural studies and third order NLO properties of selected new quinolinium semi-organic compounds

“…In recent years there has been growing interest in molecular nonlinear optical materials due to their high potential for optoelectronic and photonic applications [1,2]. The molecular nature of the materials offers considerable design possibilities which should permit to scale up the favourable molecular nonlinear optical properties to macroscopic devices [3][4][5][6][7][8].…”

Reversible phase transition in semi-organic compound p-Nitroanilinium sulfate detected using second harmonic generation as a tool

“…A portion of the input beam was picked off and measured by a fast photodiode to monitor the input energy. The angular dependence of the SH intensity leads to the so-called Maker fringes [1,2]. The experiment was calibrated using POM (3-methyl-4-nitropyridine-1-oxide) in powder form which is frequently used like reference material for SHG measurements.…”

“…In the last twenty years many investigations were established on the nonlinear optical (NLO) properties of organic molecules with great potential for optoelectronic and photonic applications [1,2]. The molecular crystals with a non-centrosymmetric arrangement are favorable for second harmonic NLO properties.…”