The subject of the presentation will be focused on molecular materials like liquid crystals, photochromic polymers or modified DNA-dye systems and their possible applications for lasing and dynamic optical information recording. Results on optical information processing were obtained in a typical degenerate two- or four-wave mixing experiments. For amplified spontaneous emission measurements, nano- or picosecond lasers of different wavelengths (355 nm and 532 nm) were used.