| 摘要 |
A method for modulating light, comprising the steps of providing a photorefractive composition containing a sensitizer and a polymer, wherein the sensitizer includes at least one selected from the group consisting of anthraquinone, -nitro-9-fluorenone and 2,7-dinitro-9-fluorenone and irradiating the photorefractive composition with a laser. The photorefractive composition provides a grating without using an external bias voltage. |
