Amir Handelman, Sergey Lavrov, Andrei Kudryavtsev, Artium Khatchatouriants, Yuri Rosenberg, Elena Mishina and Gil Rosenman Nonlinear Optical Bioinspired Peptide Nanostructures Advanced Optical Materials 1
A nonlinear optical effect of a second harmonic generation (SHG) in bioinspired peptide nanostructures is found. The peptide nanostructures, self-assembled from precursors with variable number of phenylalanine amino acid (F) units, have an asymmetric crystalline structure and demonstrate pronounced SHG response. The orientational molecular ordering in aligned FFF-peptide supramolecular structures is found, and the intermolecular bonds responsible for SHG in FF- nanotubes are defined. Efficient optical frequency conversion from NIR to green and blue light is also demonstrated.
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