Higher-order self-diffraction in bacteriorhodopisn (bR) film has been investigated. The diffraction efficiencies of higher-order self-diffraction as a function of incident intensity and order are analysed theoretically. The increase in diffraction efficiency at higher orders is due to the nonlinear transmission property of bR film, which leads to a non-sinusoidal grating shape and induces an increase in harmonic components. Calculated results for diffraction efficiencies taking into account the contribution of harmonic components are in agreement with measured results.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics