| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To realize a spatial light modulator in which incident light beams are spatially modulated by using a magneto-optical effect and spatially modulated light beams having high tolerance with respect to noise are generated without reducing the amount of information to be generated. <P>SOLUTION: The spatial light modulator 1 is provided with an element section 2 and a bias magnetic field applying coil which is arranged surrounding the section 2. The section 2 is provided with a magnetic layer 11 including a plurality of pixels 11a which are made by a magneto-optical material, have independently set magnetization directions and provide rotation in polarization directions to incident light beams in accordance with the magnetization directions by the magneto-optical effect and conductive layers 15 and 17 which are used to generate magnetic field to set the magnetization directions for the pixels 11a of the layer 11. Each of the pixels 11a has two regions 11L and 11R in which states of magnetization are mutually made different. Information is generated by changing the states of the magnetization of the regions 11L and 11R. <P>COPYRIGHT: (C)2003,JPO</p> |
