发明授权
- 专利标题: Spatial optical modulation element and spatial optical modulation method
- 专利标题(中): 空间光调制元件和空间光调制方法
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申请号: US11411805申请日: 2006-04-27
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公开(公告)号: US07151625B2公开(公告)日: 2006-12-19
- 发明人: Toshihiko Nagamura , Ikuo Matsukura
- 申请人: Toshihiko Nagamura , Ikuo Matsukura
- 申请人地址: JP Tokyo
- 专利权人: Asahi Glass Company, Limited
- 当前专利权人: Asahi Glass Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: JP2003-404280 20031203
- 主分类号: G02F1/00
- IPC分类号: G02F1/00 ; G02F1/29 ; G02F1/361
摘要:
To provide a spatial optical modulation element having a long life free from a deterioration of optical modulation characteristics even if a high power laser beam with an ultra-short pulse is used as a modulation drive light, and having a high response speed when e.g. a light having a wavelength of 1.55 μm is used.A spatial optical modulation element wherein disposed between a prism 2 and an optical functional material layer 3 made of an optical functional material with the complex index of refraction changeable by light irradiation, is a low refractive index layer 4 made of a transparent material with a refractive index lower than the refractive index of the prism 2, and carbon nanotubes are used as the optical function material.