发明名称 |
SPATIAL OPTICAL MODULATION ELEMENT AND SPATIAL OPTICAL MODULATION METHOD |
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. A spatial optical modulation element 1 wherein disposed between a prism 2 and an optical functional material layer 3 made of an optical functional material with the refractive index 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 dielectric. A spatial optical modulation method characterized in that using such a spatial optical modulation element 1, at the interface between the prism and the low refractive index layer, reflection of a to-be-modulated light 5 entering through the prism, is controlled by a modulation drive light 6.
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申请公布号 |
EP1662297(A1) |
申请公布日期 |
2006.05.31 |
申请号 |
EP20040772921 |
申请日期 |
2004.09.03 |
申请人 |
ASAHI GLASS COMPANY LTD. |
发明人 |
NAGAMURA, TOSHIHIKO;MATSUKURA, IKUO |
分类号 |
G02F1/01;(IPC1-7):G02F1/01 |
主分类号 |
G02F1/01 |
代理机构 |
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