Transient optical modulation with a disperse-red-1-doped polymer film.
Transient optical modulation properties of a disperse-red-1-doped polymer film are investigated by use of four-wave mixing with two-color light. Interesting behavior is observed for the transient modulation on variation of the two-color light intensities because of competition between the two mechanisms of one-photon (reorientation) and biphoton (isomerization) gratings. Positive and negative modulation as well as double-frequency modulation relative to blue-light input is observed in the experiment. The results may have applications in optical information processing.
Wu
P
P
Department of Physics, University of Massachusetts, Boston, Massachusetts 02125, USA.
Rao
D V
DV
Kimball
B R
BR
Nakashima
M
M
DeCristofano
B S
BS