| 摘要 |
In known light modulation means, complex phase and amplitude values for modulating light waves are implemented and modulated either separately by two different light modulation means or a light modulation means having two layers of double-refracting materials, leading to increased expenses for material and adjustment. The invention relates to a new device simplifying the modulation of light waves in phase and amplitude in a single light modulation means made of double-refracting material. In a device having regularly disposed, controllable light-modulated elements having a double-refracting material (LC) for complex modulation of coherent light waves, and a modulation controller controlling the force-induced alignment of the optical axes of the molecules (M) of the double-refracting material (LC), means are provided for independently aligning the optical axes of the molecules (M) in the light-modulating elements in two dimensions. The alignment can take place by electrical, magnetic, or optical acting means. The device allows complex-valued light modulation of light waves in a light modulation means having a single material layer by the use of identical or combined means.
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