发明名称 |
Two-dimensional photonic crystal cavity and channel add/drop filter |
摘要 |
In 2D photonic crystals, cavities having a heightened Q factor are made available, wherein combining the high Q cavities with waveguides affords channel add/drop filters having high resolution. In a cavity constituted by a point defect within a 2D photonic crystal, the 2D photonic crystal is configured by an arrangement, in a two-dimensional lattice of points defined in a slab (1), of low-refractive-index substances (2) having a low refractive index relative to the slab (1) and being of identical dimension and shape. The point defect (4) contains a plurality of three or more lattice points that neighbor one another, and in these lattice points no low-refractive-index substances (2) are arranged; therein the low-refractive-index substance (2) that should be arranged to correspond to at least one of the lattice points nearest the point defect (4) is arranged displaced by a predetermined distance from that lattice point. <IMAGE> |
申请公布号 |
EP1445630(A2) |
申请公布日期 |
2004.08.11 |
申请号 |
EP20040002784 |
申请日期 |
2004.02.09 |
申请人 |
PRESIDENT, KYOTO UNIVERSITY;SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
NODA, SUSUMU;ASANO, TAKASHI;AKAHANE, YOSHIHIRO |
分类号 |
G02B6/12;G02B6/122;H01S5/10 |
主分类号 |
G02B6/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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