Abstract
Can two laser beams of different colors interact with each other to initiate a photorefractive oscillation in a slowly responding (~1 sec) crystal? We report on the operation of this new nondegenerate four-wave mixing device, in which two other beams and the gratings are efficiently self-generated. An application for image color conversion is demonstrated. In an experiment, we used for the two pumps combinations of the lines of an argon-ion laser (514.5, 496.5,488,476.5, and 457.9 nm) and a He-Ne laser (632.8 nm). The mixing crystal was BaTiO3 with a photorefractive time constant of the order of 1 sec.
| Original language | English |
|---|---|
| Pages (from-to) | 711-713 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 12 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 1987 |
| Externally published | Yes |