In this paper, we exploit the nonlinearity inherent in four-wave mixing in organic photorefractive materials and demonstrate edge enhancement, contrast conversion, and defect enhancement in a periodic structure. With the availability of these materials, which have large space-bandwidth products, edge enhancement, contrast conversion and defect enhancement are possible. Some simulation results also are provided.
- nonlinear optical signal processing
- optical nonlinearities in organic materials
- photorefractive optics
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics