Various techniques to characterize the nonlinear (NL) optical response of centro-symmetric
materials are presented and evaluated with emphasis on the relationship between the …

Fibrillization of peptides leads to the formation of amyloid fibres, which, when in large
aggregates, are responsible for diseases such as Alzheimer's and Parkinson's,,,. Here, we …

Static electronic (hyper) polarizabilities of the two lowest-energy conformations of glycine
have been computed in the gas phase by using high-level ab initio and DFT methods with …

The multiphoton absorption of silk fibroin at 810 nm was determined by open-aperture Z-
scan. Three-photon absorption was confirmed at this wavelength and the three-photon cross …

Proteins are large biomolecules in the form of polypeptide chains consisting of amino acid
(AA) residues. Ultraviolet–visible absorption spectroscopy and continuous wave (CW) z …

Static electronic dipole polarizability, first-and second-order hyperpolarizabilities of the 20
naturally occurring amino acids have been computed in the gas phase and water solution at …

Diverse microstructures of monoclinic copper niobate (m-CuNbO 3) were synthesized by
solid-state reaction (900° C, 3–12 h). FESEM data demonstrated that agglomerated clusters …

The closed aperture continuous wave Z-scan of L-tryptophan at 661 nm was performed to
investigate the variation of on-axis nonlinear phase shift (ΔΦ_0) with the change of optical …

The first hyperpolarizabilities β of the natural aromatic amino acids tryptophan and tyrosine
have been investigated using several methods and basis sets. Some of the theoretical …

Tunability of the third-order optical nonlinearity and optical limiting action of
bacteriorhodopsin (BR) was achieved by altering the native structure through simple …