We demonstrate two simple yet efficient all-optical image-processing techniques that use nonlinear photosensitive dye-doped nematic liquid-crystal films, namely, edge enhancement and image addition-subtraction operations. These films require no external bias and function at much lower optical powers and shorter response times than other conventional methods.
|Original language||English (US)|
|Number of pages||3|
|State||Published - Aug 1 2001|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics